Set of four Ruby 12AX7AC5 tubes, brand new and in white boxes. These tubes are all factory tested and part of a fresh OEM bulk lot. You can buy with confidence that these tubes will not be microphonic

 

Purchased here and used to digitize my collection of tapes. It worked perfectly for playback. I didn't do much recording with it. But what I did worked fine. Included are ...the tape deck a copy of th

 

sale is for 1-JBL 3115 crossover unit and 1-9375 multi-tap transformer, vintage 1980's, both items are sold as set, perfectly working condition.

 

Sony PCM-501es Digital Pulse Code Modulation! Audio Processor! Please read the full description, thanks! I have received this unit from a company cleanout. It is in good physical condition with some m

 

The above title and eBay's condition statement (if any) are not part of the seller's description. Rely only on the description which follows below. ____________________________________________________

 

WORKS GREAT!!. CLEAN. TESTED FEB 16 2015.

 

Up for auction is a lot of 4 6SL7GT tubes. They have been tested on a newly calibrated B&K 707 for mutual conductance where 22% is minimum good. They test as follows RCA 42/45, RCA 55/50, RCA 40/4

 

Hello, you are bidding on three (3) individual bias & transconductance matched sets of four (4) SV6550C, more commonly referred to as just 6550's, vacuum tubes for any tube amp that uses 6550 size

 

One Awesome MULLARD EL34 / 6CA7 xf2 Audio Power Tube 1 TV-7D/U Reading - 54 (Like NEW); Min - 30 Made in UK You are bidding on One Awesome MULLARD EL34 / 6CA7 xf2 Audio Power Tube in excellent working

 

Amperex Premium Quality (PQ) 7308 (CCa 6922 E88CC) with gold pins and horizontal D-getter. The etched date is "VRO y9J", which means the tube was made by Amperex (of Philips) in its plant in Heerleen,