Amp Hack schematic questions - Page 2

m6tt · 26th February 2008, 11:49 PM

I hope it wasn't a working organ once! Keep the spring reverb, if it's a gibbs part, it's worth it...probably 8ohm input to ?k (high impedance) output. I hope you wrote down the circuit values for that reverb driver, Hammond & co. *invented* the spring reverb.

rafaelblock · 29th February 2008, 06:32 PM

Latest version of the schematic.

rafaelblock · 13th March 2008, 09:35 PM

Latest version reflects many changes including dumping a bunch of bypass caps, feedback circuit, guitar-style input voltage divider, etc. One thing that is missing from this schematic is my trial replacing the second volume control with a bandaxel [sp?] bass/treble control. Also not shown is the fact that I added some little niceties like a power switch, lamp, standby switch and fuse.

The gain is great, too great in fact, and I'm thinking voltage divider right after first [now only] volume control?

BTW this little amp started out pretty tame but has grown into a little screamer!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
CD723 Hack, did someone download it?	Andypairo	Digital Source	23	20th April 2010 10:38 PM
Preamp suggestions - Help a hack have some fun	tubesmuggler	Tubes / Valves	9	13th December 2007 11:29 PM
K7200 0-30v 0-10a Hack:)	gev	Power Supplies	0	14th June 2006 10:57 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

26th February 2008, 11:49 PM	#11
m6tt diyAudio Member Join Date: Aug 2007	I hope it wasn't a working organ once! Keep the spring reverb, if it's a gibbs part, it's worth it...probably 8ohm input to ?k (high impedance) output. I hope you wrote down the circuit values for that reverb driver, Hammond & co. invented the spring reverb.

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