OTS HRM preamp tubes

rogb
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Re: OTS HRM preamp tubes

« Reply #15 on: May 24, 2010, 09:58:50 AM »

Look forward to it, mate

Any extra info is always good.

Thanks
Rog


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beautifulbones
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Re: OTS HRM preamp tubes

« Reply #16 on: May 26, 2010, 12:56:08 PM »

can't thank you enough in advance for this manual!!!!


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50w OTS (2 6l6's, stock) and 100w HRM Bluesmaster (4 6v6's, pentode/triode, master OD volume)

mr fabulous
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Re: OTS HRM preamp tubes

« Reply #17 on: May 26, 2010, 01:30:22 PM »

guys,
this will in some ways be a living document...... your input once released will make it really superb.

this is the difference between buying a Ceriatone vs one of the main brands, we deal with the owner and we also have direct input

this community of people sharing their knowledge and experience is what makes Ceriatone special (and of course the amps are very special as well).

i am working on some basic setting at the monent upon which to build the sounds, afterwhich i will devote a section of using the effects loop and the effects loop buffer

then a technical section with layouts, and schematics

.... a good overall reference document designed to get people up and running and to develop a good understanding of the amp and its abilities.


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Deafcat
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Re: OTS HRM preamp tubes

« Reply #18 on: July 25, 2010, 03:57:27 AM »

I recently ran on to a handfull of good vintage 12AX7s from the 50s & 60s. I have 2 RCA long gray plates, a Raytheon black plate, and a really nice Sylvania 7025. I also got a pair of Siemens EL34s from the 70s.

I have to say that I am now a beleiver in vintage tubes. With all of the old AX7s there is more harmonic content & responsiveness than any of the JJ, EH or Tung Sol stuff I tried. There is an exceptional quality to all the old tubes I tried that new production just can't emulate.

In V1, the RCAs have a very rich sound but a little less detail than the Sylvania or Raytheon. They have a warmth & and almost touchable quality when run clean.

The Raytheon is very detailed and airy. Very clear sounding with a nice even tonal response. Not as rich as the RCAs. Very responsive tube as well.

The Sylvania is right in between the other two in richness with a little more forward midrange. Excellent OD tone. There is so much detail, even with the drive at max, that every note in a chord rings clearly and remains listenable. This is a quality that new production tubes do not have at all.

I found that my favorite tube set up is an RCA in V1, awith the Sylvania in V2 and a Tung Sol in the PI. Of course the NOS Siemens/RFT EL34s help a great deal.

Everyone's taste is different but I highly suggest trying some good vintage preamp tubes. Not everyone will hear things the way I do. Some different RCAs, Sylvanias & Raytheons may sound different as well but they still all out performed the dozen or more new production tubes that I have on hand.


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