guitarpkr67
Silver Supporting Member
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Hey guys, just wondering if anybody has any experience with motorola tube. I found a bunch at my new job and was wondering if they were worth having.
Post a couple of clear photos if you want an i.d. - Motorola re-branded many different manufacturer's tubes, so you can't generalize about the "brand." Also include any numbers, letters, or symbols on the tube.Hey guys, just wondering if anybody has any experience with motorola tube. I found a bunch at my new job and was wondering if they were worth having.
+1 They could be anything. I have GE Motorola and Mullard Motorola 12AX7's. BobPost a couple of clear photos if you want an i.d. - Motorola re-branded many different manufacturer's tubes, so you can't generalize about the "brand." Also include any numbers, letters, or symbols on the tube.
- Thom
274 is the EIA code for RCA. Photo will confirm.The one I have here is a 12ax7 with a code on the side that says 63-52 274.
Thanks for the help, man. I'll try to get some pics up after this weekend.274 is the EIA code for RCA. Photo will confirm.
- T
1. GEMotorola tubes. 1. 12AU7=76-02, 76-17, 188-5 2. 12ax7= This one says Matsushita, must have just been in a motorola box 3. 12ax7= 63-52, 274 4. Same as 3
1. Sylvania - unique plate structure gives it awaySylvania tubes. 1. 12au7a= No Codes 2. 12az7= L5A 3. 12au7a= BF? It wiped off when I was handling it. 4. 12au7a= kc axf or axe?
1. RCA - again, note the micaRCA and National. 1. 12au7a Codes wiped off 2. 12au7a=Wiped off 3. National 12at7= NL Made in E. Germany
Most of these tubes are not worth much - sorry to say. The RCA 12AX7 is probably the most coveted. Value will depend on how strong they test, and how well they perform. I would recommend you keep them for experimentation, rather than sell for the relative pittance you're likely to get.Are any of these decent sounding or worth anything? Thanks for the help guys and thanks for looking!
Thanks a lot for the help, man! I appreciate it. I wasn't really planning on selling them anyways. I can't wait till I can get some time to try these. My employer said they had some tube testers that the just threw away 6 months ago before I started working there.Most of these tubes are not worth much - sorry to say. The RCA 12AX7 is probably the most coveted. Value will depend on how strong they test, and how well they perform. I would recommend you keep them for experimentation, rather than sell for the relative pittance you're likely to get.
- Thom