Organ-mate reverb addition to guitar amp

H20rider · 02-16-2009, 02:24 AM

I have an organ-mate reverb unit salvaged from a Hammond.
http://www.geocities.com/OrganMate/
I'd like to adapt this to a work with a 10 watt tube amp I have. Is this reasonably feasible? Any ideas?
Thanks in advance,

Mark Hammer · 02-16-2009, 06:35 PM

Seems to me, from looking at the schematic, that you can simply use this the way that an outboard Fender reverb unit is used before an amp. The unit appears to mix dry and wet together near the output, which means it can simply feed an amp input.

The only real shortcoming is that if you intend to blast the front end of your 10W amp and produce distortion, you will also be distorting the reverb sound, which won't sound all that great.

But clean, you should have no problem. Thanks for the schematic!

Sweetfinger · 02-18-2009, 04:58 PM

I've had one of these floating around with my 'stuff' for years. Dunno if it even works. I have wondered, though, what the advantages/disadvantages are with driving a reverb tank from the cathode of a 12A*7. Could you simply run the cathode bypass cap from a gain stage through the pan input? The fact that You don't see cathode driven reverb circuits that often seems to suggest that somebody smarter than me already figured out which way works best.

02-16-2009, 02:24 AM	#1
H20rider Junior Member Join Date: Jan 2009 Posts: 3	Organ-mate reverb addition to guitar amp I have an organ-mate reverb unit salvaged from a Hammond. http://www.geocities.com/OrganMate/ I'd like to adapt this to a work with a 10 watt tube amp I have. Is this reasonably feasible? Any ideas? Thanks in advance,

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Yorkville Traynor Guitar Mate YGM-1	NoCurfew	Maintenance, Troubleshooting & Repair	6	10-19-2009 09:48 PM
Convert Organ Amp to Guitar Amp	jeepney	Conversions	6	12-30-2008 07:42 PM
baldwin organ amp to guitar amp conversion	rochotte	Conversions	4	10-26-2008 03:20 AM
Hammond Organ Reverb into Stand Alone Reverb Unit	mitz	Music Electronics	8	09-25-2008 03:41 AM
Mod'ing organ amp for guitar:	Rafael	Conversions	15	05-13-2008 04:53 PM

02-16-2009, 06:35 PM	#2
Mark Hammer Senior Member Join Date: May 2006 Posts: 1,106	Seems to me, from looking at the schematic, that you can simply use this the way that an outboard Fender reverb unit is used before an amp. The unit appears to mix dry and wet together near the output, which means it can simply feed an amp input. The only real shortcoming is that if you intend to blast the front end of your 10W amp and produce distortion, you will also be distorting the reverb sound, which won't sound all that great. But clean, you should have no problem. Thanks for the schematic!

02-18-2009, 04:58 PM	#3
Sweetfinger Senior Member Join Date: May 2006 Location: Phoenix Posts: 403	I've had one of these floating around with my 'stuff' for years. Dunno if it even works. I have wondered, though, what the advantages/disadvantages are with driving a reverb tank from the cathode of a 12A*7. Could you simply run the cathode bypass cap from a gain stage through the pan input? The fact that You don't see cathode driven reverb circuits that often seems to suggest that somebody smarter than me already figured out which way works best.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)