Modifications for Superphon Revelation Dual Mono

kirk57 · 20th April 2008, 01:39 PM

I have 2 superphon revelation dual mono pre-amps, circa 1986,
which have served quite well for all these years. Serial numbers
are 01270 DM and 01291 DM. I'd like to know of any suggestions about modifications of this preamp, given it is now
over 20 years old. BTW I have not had any problems with the pots or mute switch on either unit.

I did replace what I believe is C10,11,12 and 13 with 100uF 50v
blackgates. I use it mostly for playing lps, so anything to enhance the phono section would be great.

I also have two DM 200s....any suggestions for those would also be appreciated. or maybe that should be another thread..

Maybe if I get lucky the guy who designed these will answer :-)

Kirk

Jan Dupont · 20th April 2008, 04:07 PM

If you could post a schematic it would be much easier for us to give you advices

kirk57 · 27th April 2008, 01:08 PM

Stan-

Is it OK with you if I post the schematic? I think it's OK since this unit has not been in production for over twenty years, but I'd feel better if I knew it was OK with you....

Kirk

kirk57 · 1st May 2008, 01:44 PM

Here is the schematic:

Any suggestions would be appreciated!

Kirk

20th April 2008, 01:39 PM	#1
kirk57 diyAudio Member Join Date: Feb 2008	Modifications for Superphon Revelation Dual Mono I have 2 superphon revelation dual mono pre-amps, circa 1986, which have served quite well for all these years. Serial numbers are 01270 DM and 01291 DM. I'd like to know of any suggestions about modifications of this preamp, given it is now over 20 years old. BTW I have not had any problems with the pots or mute switch on either unit. I did replace what I believe is C10,11,12 and 13 with 100uF 50v blackgates. I use it mostly for playing lps, so anything to enhance the phono section would be great. I also have two DM 200s....any suggestions for those would also be appreciated. or maybe that should be another thread.. Maybe if I get lucky the guy who designed these will answer :-) Kirk

20th April 2008, 04:07 PM	#2
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	If you could post a schematic it would be much easier for us to give you advices __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

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27th April 2008, 01:08 PM	#3
kirk57 diyAudio Member Join Date: Feb 2008	Stan- Is it OK with you if I post the schematic? I think it's OK since this unit has not been in production for over twenty years, but I'd feel better if I knew it was OK with you.... Kirk

1st May 2008, 01:44 PM	#4
kirk57 diyAudio Member Join Date: Feb 2008	Here is the schematic: Any suggestions would be appreciated! Kirk

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