Black winged cylinder plates and a bottom dimpled foil getter with a top cap in an ST envelope. this Tube was tested on the Jackson 103 tester were the minimum good is 25 and the average NOS reading for this Tube type is 36.
Item Tag: Preamp Tubes
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12BH7 GE Halo Getter Long Pewter Plates Tube Balanced Triodes Tests NOS NIB Rare
This tube is a 12BH7 RCA preamp tube. Grey ribbed long pewter ladder plates with a halo getter. this Tube was tested on the Jackson model 103 where a typical NOS Tube will have a test result of around 38-40 and the minimum good value is 25.
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2 NEC 12AD7 12AX7 tubes Roberts 770X Akai M7 M8 Sony 500 Fisher Scott Amplifier
Check it out. Once these are gone that is all I have. The 12AD7 was preferred, as it is designed to be a more quiet preamplifier tube, but the 12AX7 will work as well.
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Pair 2 RCA 12AX7 tubes black plate Test strong Hickok 539C US 1950s D bar getter
The product is a pair of RCA 12AX7 vacuum tubes from the 1950s, specifically with a black plate and D bar getter. These preamp tubes are known for their strong test results when tested with a Hickok 539C. Made in the United States, these vintage tubes are highly sought after by audio enthusiasts and collectors for their superior quality and performance in vintage audio setups.
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3x JJ ECC83S / 12AX7 Preamp Tube Three Trio Set Free Ship
This tube sports a different plate design than found in most 12AX7’s. The compact plate structure does nothing to dampen their sound or dynamic response. They are well balanced. They do provide high gain without the usual noise and microphonic problems you would expect.
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New 1x JJ Electronics 12AX7 / ECC83 | One / Single Tube | Free Ship
Brand New JJ 12AX7 / ECC83S Single Tube This tube sports a different plate design than found in most 12AX7’s. When you look at them you can’t help but think that they must be rugged and good for the musician on the road. The compact plate structure does nothing to dampen their sound or dynamic response. They are well balanced. They do provide high gain without the usual noise and microphonic problems you would expect. This is great tube especially given how affordable they are. Why You Should Do Business With UsComes with original packaging from the factory, as shown in the pictureVery competitive pricesFast shippingShippingTubes will be shipped with USPS First-Class MailMost orders are shipped within 24 hoursTracking information is included for every purchaseReturn Policy Customer satisfaction is our #1 priority. If you are not pleased with your purchase you may return your item for a refund up to 30 days after purchase. About Us We are musicians who crave awesome tones. We all know that swapping out tubes can be one of the more effective ways of improving your tone.