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In Reply to: RE: Heath monoblocks complete, sounding very good (picture) posted by Michael Samra on June 27, 2012 at 22:25:10
I'm not sure what i would use for an active pre. Non-tube would be out of the question, I think. Maybe I shoulda kept my last Eico HF85. I would rather keep from putting new, extra stuff in the signal path.Apparently, the guitar amp crowd puts 20uf+ on the cathode of 1st tube to increase gain. Tone effect. The link below is to the calculator for values and frequencies. But is this a hi-fi use? and will it screw with feedback?
I have 12BH7 on phase splitter position . Hi-Q 5814 on input, for now.
Edits: 06/28/12Follow Ups:
Try Brimar 13D5 or for even better performance Tungsram E80cc. I used the E80cc on my W-5Ms and extra .3 amp on the E80cc filament did not bother the power transformer. HF-85? These W-5M are more cool to me plus are monoblocks!
...tubes for the 12AU7 positions. I'd love to try E80CCs, but they're not cheap. I might have to cough up real money (gasp!). Meanwhile, I find 6CG7s down in my sofa cushions.I was referring to (sold) Eico HF-85 preamp that I could've used for these Heath monoblocks.
I still have my HF81, which I mentioned earlier. Sure digging some Stones on the Hk W5's now. 6P3S-E's from Mr McShane working very well, perfectly balanced and running 47.5V bias.Peter
Edits: 06/28/12
Thats a hell of a great tube,the 6p3se.
When problems become increasingly difficult,we can always rely on our collective knowledge and seek relief.
I just received some Brimar 13D6 blackplates (12BH7 equivalent).... man these are outstanding !!
Very high resolution like the truly refined Tungsram E80CC, except that these are less hi fi sounding-i.e: a whole lot more musical ;-)
13D6=12BH7- tnx for tip.
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