My Blog

Item Category: Vintage Electronics

  • Capacitor Adapter 3/4″ Square Tek Tektronix TM501 Power Supply Recap (x3)

    New Design: By popular request I have changed the footprint for the capacitor to accept 10mm snap in capacitors, see photos for details. Capacitor Adapter circuit board for recapping Tektronix TM500 series power supplies. TM501, TM502, TM503, TM504, TM505 etc. Uses 3/4″ square layout same as the original capacitors but adapts to use 5mm, 7.5mm, 10mm, 12.5mm, or 15mm capacitor spacing. Includes circuit board and pin headers. 3 boards included, full set to recap a TM501. Some assembly required. Capacitors not included. Check dimensions drawing and measure against your equipment. These may also work with HP/Agilent/Keysight, Keithley, R&S etc. equipment

  • Deluxe Restoration Kit McIntosh MC2100 MC-2100 Amplifier

    This Introduces our own line of high quality can capacitors. In this case the 13/8 High voltage can Unavailable new. 105C operating temperature. These are custom made and fully tested. Note: not the same as the MC2105 kit ALL NEW PARTS. NO SURPLUS JUNK. THIS IS NOT LIKE OUR COMPETITORS KIT. FREE TECHNICAL SUPPORT WITH KIT PURCHASEFrom the original suppliers of refurbish kits. We started it and continue to offer them. We are always adding kits so please follow us.If you have purchased a McIntosh MC 2100 and have not changed the power supply or audio capacitors, the amplifier is not performing to its full capability. Please read the Disclaimer below before purchasing. Our MC 2100 Refurbish Kit includes All power supply twist lock and screw terminal that fit physically into the space of the originals. No drilling no clamps. The screw terminal capacitors are higher capacitance than originals. Bass response is tight and fast. We supply all Audio capacitors and sub power supply capacitors and resistors as well. Only the finest polypropylene electrolytic and non polarized electrolytic capacitors are supplied. Thermistors included.We also include heavy duty diodes for the high voltage We restore these regularly so we know what’s needed and supply unlimited technical support. Everything needed to fully electrically restore your Mc 2100. The best Solid State amp McIntosh ever made.For those not qualified to install the kit we offer a restoration service as well. Only buy this kit if you are experienced. If you need instructions you shouldn’t be doing this yourself. Have a qualified Tech install it. Or send it to us.

  • Deluxe Power Supply Restoration Kit for McIntosh MC240 MC-240 Tube Ampilier

    Free Technical Support Included With Kit Purchase If you have purchased a vintage amplifier and have not changed the power supply capacitors, you have a time bomb on your hands. 0Don’t fool around with NOS capacitors unless you are looking for trouble. 0Please read the Disclaimer below before purchasing. Although targeted for the MC240. this kit can also be used on other amplifiers as well. Our Power Supply Refurbishing Kit includes the following: (A) (2) 80/40/30/20 @525 V Twist Lock Cans CE Manufacturing USA Made, Brand New Made in the USA, to Mallory’s original specs, on Mallorys original machinery. 80 µF, 40 µf, 30 µF and 20 µF section, all rated at 525 VDC. 1-3/8″ diameter x 3″ tall Made in the USA by CE Manufacturing OR (Depending on Availability) (2) 80/40/30/20 @550 V Twist Lock Cans CTech USA made You can replace the the (2) 100/30 uf cans in the MC75 with these (connect the 80/40/20 uf sections together to get increased capacitance of 140 uf, use the 30 uf as is). These cans can be used anywhere the original cans of similar size are used. OR (Depending on Availability) (2) 100/100 @500V Twist Lock Cans CE Manufacturing USA Made, Brand New Made in the USA, to Mallory’s original specs, on Mallorys original machinery. 2 sections – both 100 µF @ 500 VDC -10%, +50% tolerance 55° temperature rating 1-3/8″ diameter x 4″ tall You can replace the the (2) 100/30 uf cans in the MC240 with these directly. Connect the first 100 section to where th old went, and connect the second 100 section where the 30 section went. Very simple direct replacement connections. These cans can be used anywhere the original cans of similar size are used. (B) (2) CTech USA Made 250uf 250v Isolated cans 105C Or (Depending on stock) (2) German Made Authenticap 250uf/250V (or 330uf/250V) Brand New Isolated Twist Lock Cans for the voltage doubler. 85C These are also direct fit, no chassis modifications or clamps required. (C) (1) 22uf /200V Electrolytic for replacing the Bias Filter Cpacitor. (Note: this is supplied as either a single 22 uf capacitor rated at 200V or greater, or (2) 47 uf capacitors rated at 100V, to be used in series). (D) (1) 3 X 1N4007 Silicon Diode for replacing the Selenium rectifier and both main rectifiers. (E) (1) 10K Trim Potentiometer (POT) (we actually give you a few different values), for adjusting the bias voltage to the proper level (compensating for the lower silicon diode drop and adding more precision). The POT is simply uses to determine the correct resistor value for your bias circuit, of which you then obtain and install. Its explained in the insatalliton tips. (F) Guide to installation – offer tips for easier installation- assumes you have the tools and technical knowledge and experience to do the work. (G) Service manual (H) 2 x .01uf snubber capacitors (I) Thermistor Replacement Most of these these items are sold separately in my Ebay Store as well. Disclaimer: Please note that this kit is not to be used by inexperienced users. There are high, potentially lethal voltages inside the MC240 and other tube amplifiers. If you don’t know what you are doing, don’t buy this kit OR contact us to schedule an installation for you. We provide installation services for all the parts we sell. We do not take responsibility for personal injury, destroyed or broken amplifiers as a result of improper installation or lack of knowledge or tools. The guide we provide assumes you already have a knowledge of proper component installation techniques and the proper tools. This is not a trival task. The guide is by no means a detailed step by step installation guide. Purchase more than (1) kit, or purchase other compnents and services from us and we combine shipping to save you money. We also have Twist Lock can direct fit capacitors for a variety of other equipment such as the McIntosh C22, MX-110, Scott 299, Dynaco MKIII, and ST70 as well as for Guitar amplifiers. We also have the other Capacitor cans for the listed units available. We offer complete power supply restoration kits for most amplifiers, preamps and tuners. An installation service for what we sell is available as well. We have more of these in our Ebay Store. Tell us where you will be using these capacitors, and we will give you instructions on where and how to install them. Or, we can install them for you at a nominal charge + shipping. Your can email us or call us at to discuss your application and our installation services. INfo is in our EBay store. Our company CTech Electronics stands behind all of its products and services. Bid with confidence. Unlike our competitors, we are a full service company offering bot parts and repair/diagnostic services. We have the technical qualifications to solve your problems should any arise. Please shop our Ebay Store.

  • Mcintosh Power Book 3400 Series Gray

    Mcintosh Power Book 3400 Series Gray

  • CAPACITOR CAN 80/40/30/20 µF @ 525VDC McIntosh MC-225 MC-240 MC-30 MC-40 MC-60

    If you have purchased a vintage amplifier and have not changed the power supply capacitors, you have a time bomb on your hands. Don’t fool around with NOS capacitors unless you are looking for trouble. Made in the USA, to Mallory’s original specs, on Mallorys original machinery. 80 µF, 40 µf, 30 µF and 20 µF section, all rated at 525 VDC. 1-3/8″ diameter x 3″ tall Made in the USA by CE Manufacturing You can replace the the (2) 100/30 uf cans in the MC240 with these (connect the 80/40/20 uf sections together to get increased capacitance of 140 uf, use the 30 uf as is) and use our German isolated cans for the voltage doubler. The increase in bass performance is astonishing. See the listing for those in my Ebay Store. These cans can be used anywhere the original cans of similar size are used. Call or email us for information. We will give you instructions on how to use these and all of our capacitors and products. Purchase more than (1) piece, or purchase other compnents and services from us and we combine shipping to save you money. We also have Twist Lock can direct fit capacitors for a variety of other equipment such as the McIntosh C22, MX-110, Scott 299, Dynaco MKIII, and ST70 as well as for Guitar amplifiers. We also have the other Capacitor cans for the listed units available. We offer complete power supply restoration kits for most amplifiers, preamps and tuners. An installation service for what we sell is available as well. Check our Ebay Store for othe capacitor cans. Tell us where you will be using these capacitors, and we will give you instructions on where and how to install them. Or, we can install them for you at a nominal charge + shipping. Your can email us a or call us to discuss your application and our installtion services. Our contact information is in our EBay store. Our company CTech Electronics stands behind all of its products and services. Bid with confidence. We are a full service company offering parts,tubes, equipment and repair services. Please visit our Ebay Store

  • Deluxe Power Supply Restoration Kit McIntosh MC-225 MC225 Tube Amplifier

    Free technical support included. If you have purchased a vintage amplifier and have not changed the power supply capacitors, you have a time bomb on your hands. Don’t fool around with NOS capacitors unless you are looking for trouble. Please read the Disclaimer below before purchasing. Although targeted for the MC 225 this kit can also be used on other amplifiers as well. Our Power Supply Refurbishing Kit includes the following: (A) (1) USA Made CE Dist (MALLORY) 80/40/30/20 @525 V Twist Lock Can. You can use the 80,30 uf sections to get 110uf to replace the 80uf (30 uf increase in capacitance), use the 40 uf to replace the 35 uf, and the 20uf to replace the 15uf. The bass response is incredible. OR (depending on stock) 1) German Made Authenticap 80/40/30/20 @550 V Twist Lock Can. You can use the 80,30 uf sections to get 110uf to replace the 80uf (30 uf increase in capacitance), use the 40 uf to replace the 35 uf, and the 20uf to replace the 15uf. The bass response is incredible. (B) (2) 250uf @ 250V CTech USA made 105C OR (Depending on stock) (2) German Made Authenticap 250uf (or 330 uf )@ 250V Brand New Isolated Twist Lock Cans for the voltage doubler. These replace the 150uf capacitors for another terrific increase in bass performance. These are also direct fit, no chassis modifications or clamps required. (C) (1) 22uf /250V 85C operating temperature Electrolytic for replacing the Bias Filter Cpacitor. (D) (3) 1N4007 Silicon Diodes. (1) for replacing the Bias Selinium rectifier, (2) for replacing the Recifier diiodes in the voltage doubler. (E) (2) .01uf 630V Polypropylene capacitors to replace the snubber caps in the Voltagw doubler. (F) 3A 45 Ohm NTC Thermistor to replace the stock one. (G) (1) 10K Trim Potentiometer (POT). The POT is simply used to determine the correct resistor value for your bias circuit, of which you then obtain and install. Its explained in the insatalliton tips. (H) Guide to installation – offer tips for easier installation- assumes you have the tools and technical knowledge and experience to do the work. Schematic /Service Manual included. The increase in performance of the MC 225 with this kit installed is very significant, especially in bass palpability punch and imaging. Most of these these items are sold separately in our Ebay Store as well. Disclaimer: Please note that this kit is not to be used by inexperienced users. There are high, potentially lethal voltages inside the MC 225 and other tube amplifiers. If you don’t know what you are doing, don’t buy this kit OR contact us to schedule an installation for you. We provide installation services for all the parts we sell. We do not take responsibility for personal injury, destroyed or broken amplifiers as a result of improper installation or lack of knowledge or tools. The guide we provide assumes you already have a knowledge of proper component installation techniques and the proper tools. This is not a trival task. The guide is by no means a detailed step by step installation guide. Purchase more than (1) kit, or purchase other compnents and services from us and we combine shipping to save you money. We also have Twist Lock can direct fit capacitors for a variety of other equipment such as the McIntosh C22, MC 40 MC75 MX-110, Scott 299, Dynaco MKIII, and ST70 as well as for Guitar amplifiers. We also have the other Capacitor cans for the listed units available. We offer complete power supply restoration kits for most amplifiers, preamps and tuners. An installation service for what we sell is available as well. We have more of these in our Ebay Store. Tell us where you will be using these capacitors, and we will give you instructions on where and how to install them. Or, we can install them for you at a nominal charge + shipping. Ask us about your application. Our company CTech Electronics stands behind all of its products and services. Bid with confidence. Unlike our competitors, we are a full service company offering bot parts and repair/diagnostic services. We have the technical qualifications to solve your problems should any arise. Please shop our Ebay Store.

  • Deluxe Restoration Kit McIntosh MC-225 MC225 Tube Amplifier

    Includes all power supply components plus all Audio capacitors including cathode bypass capacitors Free technical support included.If you have purchased a vintage amplifier and have not changed the power supply capacitors, you have a time bomb on your hands. Don’t fool around with NOS capacitors unless you are looking for trouble. Please read the Disclaimer below before purchasing. Although targeted for the MC 225 this kit can also be used on other amplifiers as well. Our Power Supply Refurbishing Kit includes the following: (A) (1) German Made Authenticap 80/40/30/20 @550 V Twist Lock Can. You can use the 80,30 uf sections to get 110uf to replace the 80uf (30 uf increase in capacitance), use the 40 uf to replace the 35 uf, and the 20uf to replace the 15uf. The bass response is incredible. OR (Depending on Stock) (1) USA Made CE Dist (MALLORY) 80/40/30/20 @525 V Twist Lock Can. You can use the 80,30 uf sections to get 110uf to replace the 80uf (30 uf increase in capacitance), use the 40 uf to replace the 35 uf, and the 20uf to replace the 15uf. The bass response is incredible. (B) 2) CTech USA Made 250uf 250v Isolated cans 105C Or (Depending on stock) (2) German Made Authenticap 250uf/250V (or 330uf/250V) Brand New Isolated Twist Lock Cans for the voltage doubler. 85C For the voltage doubler. These replace the 150uf capacitors for another terrific increase in bass performance. These are also direct fit, no chassis modifications or clamps required. (C) (1) 22uf /250V 85C operating temperature Electrolytic for replacing the Bias Filter Cpacitor. (D) (3) 1N4007 Silicon Diodes. (1) for replacing the Bias Selinium rectifier, (2) for replacing the Recifier diiodes in the voltage doubler. (E) (2) .01uf 630V Polypropylene capacitors to replace the snubber caps in the Voltagw doubler. (F) 3A 45 Ohm NTC Thermistor to replace the stock one. (G) (1) 10K Trim Potentiometer (POT). The POT is simply used to determine the correct resistor value for your bias circuit, of which you then obtain and install. Its explained in the insatalliton tips. (H) 1) All Audio coupling capacitor replacements with polypropylene CDE, IC, or Mallory 150M and high quality high temperature electronic audio cathode bypass capacitors (I) Guide to installation – offer tips for easier installation- assumes you have the tools and technical knowledge and experience to do the work. Schematic /Service Manual included. The increase in performance of the MC 225 with this kit installed is very significant, especially in bass palpability punch and imaging. Most of these these items are sold separately in our Ebay Store as well. Disclaimer: Please note that this kit is not to be used by inexperienced users. There are high, potentially lethal voltages inside the MC 225 and other tube amplifiers. If you don’t know what you are doing, don’t buy this kit OR contact us to schedule an installation for you. We provide installation services for all the parts we sell. We do not take responsibility for personal injury, destroyed or broken amplifiers as a result of improper installation or lack of knowledge or tools. The guide we provide assumes you already have a knowledge of proper component installation techniques and the proper tools. This is not a trival task. The guide is by no means a detailed step by step installation guide. Purchase more than (1) kit, or purchase other compnents and services from us and we combine shipping to save you money. We also have Twist Lock can direct fit capacitors for a variety of other equipment such as the McIntosh C22, MC 40 MC75 MX-110, Scott 299, Dynaco MKIII, and ST70 as well as for Guitar amplifiers. We also have the other Capacitor cans for the listed units available. We offer complete power supply restoration kits for most amplifiers, preamps and tuners. An installation service for what we sell is available as well. We have more of these in our Ebay Store. Tell us where you will be using these capacitors, and we will give you instructions on where and how to install them. Or, we can install them for you at a nominal charge + shipping. Ask us about your application. Our company CTech Electronics stands behind all of its products and services. Bid with confidence. Unlike our competitors, we are a full service company offering bot parts and repair/diagnostic services. We have the technical qualifications to solve your problems should any arise. Please shop our Ebay Store.

  • (Lot of 10) NOS Mial Polystyrene Capacitors 220pf 160v Film/Foil type for Audio

    For Sale is a (Lot of 10) NOS Mial Polystyrene Capacitors 220pf 160v Film and Foil type for Audio. Polystyrene is a great choice for audio applications as the dielectric is very stable, and sonically pleasing.

  • VITAMIN Q CAPACITOR ~ 0.047uF/200V ~ PIO ~ GUITAR ~ TONE ~ NOS ~ 196P ~ TESTED

    SPRAGUE VITAMIN-QTONE CAPACITOR0.047 uF200 V D.C.196P47392S2Diameter: 3/8″ (10mm)Length: 7/8″ (22mm)Axial Leads: 1-7/8″ (48mm) Here we have the much sought after, originalSprague Vitamin-Q Capacitors!Paper-In-Oil (PIO)Hermetically SealedGreat for guitars, amplifiers and other restoration projects.TESTED – ALL WITH 10% From the 1966 Sprague catalog:VITAMIN Q SUBMINIATURE PAPER CAPACITORSThese capacitors are the most widely used of all paper capacitors in commercial and military electronic equipment. Hermetically sealed in metal cases, they are electrically and mechanically designed to meet stringent operating requirements.Impregnated with Vitamin Q, a substantially linear, controlled molecular weight, hydrocarbon polymer, which is exclusive with Sprague, these dependable capacitors are available for operation in two temperature ranges: -55 °C to + B5 °C and -55°C to + 125°C. Because of their Vitamin Q impregnation, these subminiature capacitors have a higher insulation resistance and longer life than comparable units with ordinary oils.Sprague Subminiature paper capacitors exceed the performance requirements of military specification Mll-C-2SA. DOMESTIC and MOST INTERNATIONAL SHIPPING IS FREE AFTER THE FIRST! Buy 2 get a 5% DISCOUNTBuy 3, get a 10% DISCOUNTBuy 4 or more, get a 15% DISCOUNTUse the CART feature if buying items from more than one of my listings.Quantity:This sale is for a lot of ONE (1) Unit.Note: the listed quantity available is, in some cases, an estimate.There may be a few more or a few less in stock than what is shown.If you order 10 and I only have 8 remaining, I will ship the 8 and credit you for the remainder. Shipping Charges:Domestic Buyers pay just $4.50 for shipping and handling on the first itemand there is no charge for additional qualified item. International Buyers pay the actual amount as determined by eBay. NOTE: If the shipping charge seems to be too high, please request an invoice before making your payment. This will allow me to send the correct package weight and dimensions to eBay and receive the best shipping cost. I do not add any fees onto the actual shipping charge.This will be carefully packed and shipped quickly. Condition:NOSLOOSE PACKEDOPEN BOX Returns:I will accept domestic returns if item is not as described in ad. OTHER ITEMS:I have several other vintage electronic components listed.Please have a look.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Please Note:In my photos and my description, I have attempted to show all knowninformation as accurately as possible.I am not a big seller, business or store.I have not attempted to conceal any flaws, defects or information.I do not intentionally deceive you (the buyer) in any way.If you have any comments or questions about the items I am selling,please feel free to send me a note.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Happy Shopping!Thank YouQUALITY:I use a Sencor LC75 to test each of these (at full rated voltage) to assure value is within 10% and leakage is 0. QUANTITY:This sale is for a lot of ONE (1) Capacitor. SHIPPING:Domestic buyers pay just $4.00 for shipping and handling on the first itemthere is no charge for additional qualified items.International buyers pay just $16.00 for shipping and handling on the first itemthere is no charge for additional qualified items.International Shipping is via eBay’s International Standard Delivery program.These capacitors will be carefully packed and shipped quickly. Condition:NOS, Loose PackedFULL-LENGTH AXIAL LEADSSome scuffs, scrapes & scratches should be expected.Label is easy to read on most of the capacitors.Original packaging is not included.These are New Old Stock from a mass buy-out. Other Items:I have several other vintage electronic components listed on eBay. Have a look! Returns:I will accept domestic returns if you are not happy with this item. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Please Note:In my photos and my description, I have attempted to show all known information as accurately as possible.I am not a big seller, business or store.I have not attempted to conceal any flaws, defects or information.I do not intentionally deceive you (the buyer) in any way.If you have any additional information about the item I am selling,please feel free to send me a note.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Thank You and Happy Shopping!

  • New Replacement Kit for 40 + 40 + 20 + 20 uf 450v Quad Can Capacitor

    Up for sale here is this kit to allow you to replace a 40 uf/40 uf/20 uf/20 uf 450v quad (4-section) can capacitor. You will receive two (2) new 40 uf 450v Supertech radial capacitors, two (2) 22 uf 450v Supertech radial capacitors, and one (1) 5-lug terminal strip. You can mount the terminal strip under the chassis, attach the capacitors to it, and then attach the various wires and resistors from your equipment, giving you the equivalent of the original can capacitor, without worrying about gutting it or searching around for new old stock cans. This isn’t that hard to install, but you should know what you’re doing and have a decent soldering iron. Please see my pictures for details. If you’d like a custom can capacitor replacement kit instead, I have a listing here where you can custom-design whatever you’re looking for. US shipping and handling is $5, and international is $18, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the “add to cart” feature and then check out all at once, and it will combine shipping. If you have any questions, please ask. Looking for more parts? I have power switches, feet, pushbuttons, top case screws, bottom screws, faceplate screws, white LED fuse lamps, blue LED fuse lamps, 6.3v bi-pin bulbs, 8v bi-pin bulbs, 12v bi-pin bulbs, wired 8v 60ma bulbs, new power cords, new main capacitors for the Marantz 1060/2230, wired Pioneer speaker plug replacements, new 630v yellow film capacitors at 38 different values, new 1200v yellow film capacitors at 15 values, a large variety of transistors for vintage stereo repair, new Wima film capacitors for stereo repair, new 250v yellow film crossover capacitors, and more. Just use “add to cart” on everything you want and then check out for combined shipping.