Picked up an AR-3500 and would like to find an original SP-1A. It was suggested to me that I might be able to use a CB Int’l speech compressor as an alternative. Suggestions and leads are greatly appreciated.
Todd
Todd
I agree, years ago my bud Tracy, KE6OYE even etched his own version of Lou's board with a couple component changes and the SP1 still worked better.I know of a few places selling copies of the SP1a. Lou Franklins CB Int speech compressor is totally different animal. Sp1a contains a compander and CB Int is a series of opamp stages with a feedback loop setup like a clipper. I have both and choose he SP1a for how clean it sounds.
Lesscomm sells his copy for a 300% markup. I etched my own minus the relay.I agree, years ago my bud Tracy, KE6OYE even etched his own version of Lou's board with a couple component changes and the SP1 still worked better.
Just hard to find now.
CPI built a Speech compressor called "Talk Power" that worked well, also hard to find now.
73
Jeff
View attachment 62345
Any information on where to acquire one of these copies ?I know of a few places selling copies of the SP1a. Lou Franklins CB Int speech compressor is totally different animal. Sp1a contains a compander and CB Int is a series of opamp stages with a feedback loop setup like a clipper. I have both and choose he SP1a for how clean it sounds.
Thank you for that……..I've got a couple of Bob's sp1a but I'm hanging onto them.
I only mentioned that because @KneeBiter said he would part with one. I haven't one goings into the 797 and the other one for a possible future project. If kneebiter can part with 2 I would say buy them because they're hard to find. I paid more than I should have for the 2 I got but will hopefully be worth it.Thank you for that……..
I really wasn't meaning to be dickish, I'm sorry if it came across that wayThank you for that……..
Haha……. I didn’t even see Kneebiters response…….. I couldn’t resist the opportunity to be “dickish” back buddy ! All is good !I really wasn't meaning to be dickish, I'm sorry if it came across that way
DoneI have a few. Message me on inbox.
Awesome. Enjoy!!Thank you KneeBiter for the swift transaction. Item arrived as described today.
Todd