Howdy all,
Thought I'd share some pics of my latest DIY job.
Anyone here remember the ADA Ampulator? :wink: For those of you who don't know, the Ampulator was one of the last products ADA released before going bust in the late 90's. It's a power tube saturation and speaker simulator which uses a 12A_7 running as a micro power amp.
My DIY version has a couple of things missing that the original version had - variable B+ supply, triode/pentode switch, variable HT hum - but I've added a switch to enable the tube section to drive an external speaker for low volume cranked amp tones, something the original unit couldn't do.
More pics here:
http://i153.photobucket.com/albums/s222/ac1176/SA2.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA3.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA4.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA5.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA6.jpg
A lot of firsts for me in this project - my first double-sided board layout, first time I used "proper" board layout software (was using AutoCAD previously, now using FreePCB, which I highly recommend to anyone looking for a no-frills free PCB layout program), first time I had a PCB made by a board house, first time I had a front panel made by Front Panel Express. I'm really happy how the whole thing turned out.
As an amp sim it sounds pretty good too. I'll try to post some sound clips soon. I've currently got a CV4068 tube installed, but have yet to try other tubes in its place.
Thought I'd share some pics of my latest DIY job.
Anyone here remember the ADA Ampulator? :wink: For those of you who don't know, the Ampulator was one of the last products ADA released before going bust in the late 90's. It's a power tube saturation and speaker simulator which uses a 12A_7 running as a micro power amp.
My DIY version has a couple of things missing that the original version had - variable B+ supply, triode/pentode switch, variable HT hum - but I've added a switch to enable the tube section to drive an external speaker for low volume cranked amp tones, something the original unit couldn't do.
More pics here:
http://i153.photobucket.com/albums/s222/ac1176/SA2.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA3.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA4.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA5.jpg
http://i153.photobucket.com/albums/s222/ac1176/SA6.jpg
A lot of firsts for me in this project - my first double-sided board layout, first time I used "proper" board layout software (was using AutoCAD previously, now using FreePCB, which I highly recommend to anyone looking for a no-frills free PCB layout program), first time I had a PCB made by a board house, first time I had a front panel made by Front Panel Express. I'm really happy how the whole thing turned out.
As an amp sim it sounds pretty good too. I'll try to post some sound clips soon. I've currently got a CV4068 tube installed, but have yet to try other tubes in its place.