Vinyl Asylum

There is a total of one on eBay now . . . (link).

74.214.45.198

Opus 33 1/3

In Reply to: RE: Only problem is those Mazda 5Y3GB rectifiers are rather scarce now. posted by Opus 33 1/3 on August 25, 2014 at 10:39:00

Opus 33 1/3

Mazda 5Y3GB (Open in New Window)

Follow Ups:

RE: There is a total of one on eBay now . . . (link). - ColoKurt 11:23:12 08/25/14 (8)
Thanks for the heads up. I just bought one and it looks like he has five left. I finished my Cornet 2 about six months ago and this should give it a nice boost.
- Before I tried the Mazda, I doubted any rectifier could make - Opus 33 1/3 16:05:30 08/25/14 (7)
  a big difference. Not so now. It transformed the Cornet 2 from a very good preamp to an excellent one. I think Perry agrees.
  
  Opus 33 1/3
  - Yes, I agree - Biff 05:59:01 08/27/14 (0)
    I've tried a number of other NOS tubes in that spot, but the Mazda keeps coming back.
  - RE: Before I tried the Mazda, I doubted any rectifier could make - ColoKurt 10:51:58 08/26/14 (4)
    I'm really looking forward to trying it out in mine. I was wondering if by any chance you measured the heater voltages before and after swapping in the Mazda?
    - RE: Before I tried the Mazda, I doubted any rectifier could make - ColoKurt 18:29:38 09/02/14 (0)
      Just for the record, I didn't see any change in heater voltage after swapping in the Mazda rectifier tube (6.05V before and after). I haven't noticed a world of difference yet with the new tube, but I've only listened to one record.
    - RE: Before I tried the Mazda, I doubted any rectifier could make - rosendds@frontiernet.net 16:38:33 08/26/14 (2)
      Is the 5Y3GB the same as the 5Y3GT?I have a Clarinet line stage and wonder if the Mazda 5Y3GB would be a improvement.
      - RE: Before I tried the Mazda, I doubted any rectifier could make - ColoKurt 10:33:09 08/27/14 (0)
        
        In Reply to: RE: Before I tried the Mazda, I doubted any rectifier could make posted by rosendds@frontiernet.net on August 26, 2014 at 16:38:33
        
        Yes that's the same transition, I'm trying. Did you build your Clarinet? I'm no expert, but based on the guys at the Hagerman site on AudioCircle, it's possible that the different tubes will affect the tube heater voltages differently, either moving them closer to or further away from where they should be. On the Cornet 2 the 12AX7's and 12AU7 I believe should be around 6.2V. If you have the time and know-how you may want to check these before and after making the switch.
      - They are equivalent. /nt - Biff 07:51:19 08/27/14 (0)
        
        In Reply to: RE: Before I tried the Mazda, I doubted any rectifier could make posted by rosendds@frontiernet.net on August 26, 2014 at 16:38:33
  - i didn't think so either - ringwear 19:40:43 08/25/14 (0)
    until I read a report on Positive feedback and tried the Philips 5R4GYS myself in my power amp. Didn't make much of a change in my preamp.
    
    they still can be had for about $65 @ Upscale Audio.
    - NOS Philips 5R4GYS Rectifier Tube (Replaces GZ34/5AR4) (Open in New Window)

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