Members WRGKMC Posted May 28, 2014 Members Share Posted May 28, 2014 Yea I meant to ask that too. My P bass has a series parallel switch in it which is all you can really do with two pickups besides add additional components, caps, coils, Varitone etc. Link to comment Share on other sites More sharing options...
Members WynnD Posted May 28, 2014 Author Members Share Posted May 28, 2014 OK, it was new in 72 and a single split pickup. I took a chisel to the wood under the pickguard and cut out space for a small transformer that I used as a choke with a bunch of capacitors and a rotary switch. This created a notch filter. (As I recall.) It was all trial and error coming up with the combinations that I eventually soldered in. So after drilling a mounting hole in the pick guard for the extra control, I purchased a set of Kustom type of control knobs. I just like them, they feel good and give good leverage. I'm betting that was one of the first things replaced by it's new owner. Like I said, I don't run anything full out when playing bass. So the Acoustic 136 had a lot of available headroom on the volume knob, so I just added a bit there and them just made all changes at the bass. I did make sure that one of my options was the stock P bass sound. It's only one sound, but it's a really great sound. I miss having one. Link to comment Share on other sites More sharing options...
Members WynnD Posted May 28, 2014 Author Members Share Posted May 28, 2014 My inspiration for all this was a guitarist I knew named John Kennedy. He had a Dan Armstrong bass that he used for creating his music. He had done something similar with the single pickup bass and I spent about 20 minutes with it and don't think I ever got the same sound out of it twice. It was amazing. Looked fully stock. Wonder what ever happened to him? He would probably be about 70 now. Very creative guy. Link to comment Share on other sites More sharing options...
Members Stingray5 Posted June 14, 2014 Members Share Posted June 14, 2014 Check out the Fender Rumble 150! Link to comment Share on other sites More sharing options...
Members Drummer44 Posted June 15, 2014 Members Share Posted June 15, 2014 People have always complained about how heavy my basses are. At 61, I'm starting to notice it too. I'm older, and am developing an intense dislike of shifting heavy weights around. The last two guitar amps I bought were each in three pieces, amp and two separate single-speaker cabs. Much easier to deal with the weight of individual pieces. And then mostly we play through the PA anyway, without individual amps at all. We don' need no steenkin' stage noise! -D44 Link to comment Share on other sites More sharing options...
Members WRGKMC Posted June 16, 2014 Members Share Posted June 16, 2014 OK, it was new in 72 and a single split pickup. I took a chisel to the wood under the pickguard and cut out space for a small transformer that I used as a choke with a bunch of capacitors and a rotary switch. This created a notch filter. (As I recall.) It was all trial and error coming up with the combinations that I eventually soldered in. So after drilling a mounting hole in the pick guard for the extra control, I purchased a set of Kustom type of control knobs. I just like them, they feel good and give good leverage. I'm betting that was one of the first things replaced by it's new owner. Like I said, I don't run anything full out when playing bass. So the Acoustic 136 had a lot of available headroom on the volume knob, so I just added a bit there and them just made all changes at the bass. I did make sure that one of my options was the stock P bass sound. It's only one sound, but it's a really great sound. I miss having one. So it was basically as Varitone with a 1H coil and caps. Link to comment Share on other sites More sharing options...
Members WynnD Posted June 17, 2014 Author Members Share Posted June 17, 2014 probably. Just a LC notch filter at different frequencies. Was noticing that something similar can be done using the mid tone control on my Ampeg amp. (Not as quickly.) Link to comment Share on other sites More sharing options...
Members WRGKMC Posted June 17, 2014 Members Share Posted June 17, 2014 It was probably something like this. http://music-electronics-forum.com/a...6-varitone.gif A regular Varitone just uses a coil instead of a transformer. The results would have been the same so long as the transformer primary had a similar rating in Henries. The caps were likely different so they targeted a basses lower frequency ranges. http://i8.photobucket.com/albums/a22...c/varitone.gif I prefer to use an active circuit myself. Artec makes some mini circuits that take up less space and the current drain is so low the battery lasts for a year with regular use. I even left a guitar plugged in for two weeks accidentally with the circuit active and it was still working fine. Link to comment Share on other sites More sharing options...
Members WynnD Posted June 18, 2014 Author Members Share Posted June 18, 2014 That's just about how a schematic would have looked. Link to comment Share on other sites More sharing options...
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