Model 257 or 151 tester on 6/25/26. Worn, mismatched, RCA 6SN7GTB box.
Item Tag: GE 6SN7GTB
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GE 6SN7GTB Vacuum Tube Vintage Tested Good with Original Box
Model 257 tester on 6/25/26. Original GE box has minor signs of wear/age.
Model 257 or 151 tester on 6/25/26. Worn, mismatched, RCA 6SN7GTB box.
Model 257 tester on 6/25/26. Original GE box has minor signs of wear/age.