Search found 5 matches

by Greyrocker
Mon May 10, 2021 7:03 am
Forum: Technical Discussion
Topic: Fender reverb driver source?
Replies: 7
Views: 1531

Re: Fender reverb driver source?

Hello, I am currently designing a preamp with reverb and vibrato that uses circuits that were not intended for guitar but sound great. The reverb section is a clone of the Motorola Vibrasonic which used a very unusual reverb tank that is nearly impossible to find at a reasonable cost. I decided to u...
by Greyrocker
Mon May 10, 2021 6:16 am
Forum: Technical Discussion
Topic: The elusive 1 3/16 in. chassis punch.
Replies: 7
Views: 1417

Re: The elusive 1 3/16 in. chassis punch.

Hello, I don't know where you can get a 1 3/16" chassis punch but being a machinist by trade I can provide you with a simple means of producing a hole in your chassis for an octal socket that I have used often. 30mm 1.181" is a mere .006" smaller than 1 3/16" and your octal socket will fit snugly in...
by Greyrocker
Sun May 09, 2021 5:04 pm
Forum: Technical Discussion
Topic: Design/Troubleshooting help for new, simpler ReVibe unit
Replies: 7
Views: 1356

Re: Design/Troubleshooting help for new, simpler ReVibe unit

Thanks for your input, Sluckey. I am new at posting on a forum and hadn't noticed I was addressing the wrong member. I guess this thread is going nowhere since he dropped out.
by Greyrocker
Sun May 09, 2021 3:57 am
Forum: Technical Discussion
Topic: Design/Troubleshooting help for new, simpler ReVibe unit
Replies: 7
Views: 1356

Re: Design/Troubleshooting help for new, simpler ReVibe unit

That does make sense. I'm thinking that using all 4 plates might be the problem. It may be dropping the gain, One thing I tried was to use the 12FQ8 as a 4 output multi coupler but it wouldn't pass signal. It seems to me that what Laird was trying to accomplish may've been to clone a Fender Harmonic...
by Greyrocker
Sun May 09, 2021 1:18 am
Forum: Technical Discussion
Topic: Design/Troubleshooting help for new, simpler ReVibe unit
Replies: 7
Views: 1356

Re: Design/Troubleshooting help for new, simpler ReVibe unit

Hello all, I a new to this forum. I have been building sound effect circuits for many years. Some work well, others no so well. I found Laird's site about a year ago while researching uses for the 12FQ8 tube and have wanted to build the tremolo section. I noticed there is a what may be a flaw in Lai...