Do you notice a big difference in the Piher's and the resistors you used in 183 (whatever those are?)..Building my 102 w/ the Pihers and Speers now and waiting on the PT. Have you built anything using the old CTS's as well?
Thanks!!
Tony
" The psychics on my bench is the same as Dumble'"
Do you notice a big difference in the Piher's and the resistors you used in 183 (whatever those are?)..Building my 102 w/ the Pihers and Speers now and waiting on the PT. Have you built anything using the old CTS's as well?
Thanks!!
Tony
Tony, those carbon film's above are Electra which are kind of physically similar to a Sprague Q line (Draloric) carbon film. I also used those in my HV (MusicMan PS) build of which i'll be redoing with all Piher CF(see cathode bypass cap thread) and maybe then I'll have a baseline for comparison. Now I've used the pihers in other builds and even used them on the cathodes of that latest quad 6V6 build and I'm quite fond of them. I think those Pihers are a perect fit for a 102.
As part of my HV build redo I'm ditching the PEC and will be replacing them with USA made A-B, TVT CTS and reg CTS pots. I would love to get the older CTS pots but it's hard to find the exact models. I've been looking for basket case SF Fender amps just so I can get the pots.
Jelle
I am not so sure if it's only the taper or the type carbon they use on the trace that gives those older CTS's there Mojo.. (for lack of a better word. ) Probably a little of both.
I am doing some experiments on this now..
TM
Thanks for the reply.. I agree I believe those Piher's will be a nice fit for a 102.. Keep me posted on your results and I'll do the same..
Tony
" The psychics on my bench is the same as Dumble'"
talbany wrote:Jelle
I am not so sure if it's only the taper or the type carbon they use on the trace that gives those older CTS's there Mojo.. (for lack of a better word. ) Probably a little of both.
Tony
Tony, rather than drift this further I'll start a thread on pots; composition, tapers and strategic location.
talbany wrote:Jelle
I am not so sure if it's only the taper or the type carbon they use on the trace that gives those older CTS's there Mojo.. (for lack of a better word. ) Probably a little of both.
Tony
Tony, rather than drift this further I'll start a thread on pots; composition, tapers and strategic location.
Mike
TM
I agree this topic has been discussed here many times and IMHO can be searched for instead of going back down this road..
All The Best!
Tony
" The psychics on my bench is the same as Dumble'"
ToneMerc wrote:
I concur how sensitive it is and I found that RG400 coax in the loop in conjunction with the D'Lator makes a world of difference.
TM
I get confused by how many different designations there are for shielded coax cable.
For instance, the white Teflon stuff I got from Apex Jr., I don't have a clue what that stuff is.
I think the last I got from him is 18 ga center, the center insulation is a little different than I'm used to as it is sort of brown color.
What I love about the Teflon coax is that it doesn't melt back when soldering if you happen to get it too hot.
When I measured the length of it on a cap meter it works out to be around 35pf/ ft.
Is this stuff like what you have TM?
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And finally, are these the cables to and from the amp to Dumbleator or from your effects to your Dumbleator?
I see on your amp you have the pots labeled with their true values.
On the bass pot, what did the 308K originally start as?
I ordered a couple 300K pots and they were both under valued at around 285K.
I was trying to get closer to the #183 value....
I also tried scraping a pot but all that did was cause me to throw it in the garbage can.
And finally, are these the cables to and from the amp to Dumbleator or from your effects to your Dumbleator?
I see on your amp you have the pots labeled with their true values.
On the bass pot, what did the 308K originally start as?
I ordered a couple 300K pots and they were both under valued at around 285K.
I was trying to get closer to the #183 value....
I also tried scraping a pot but all that did was cause me to throw it in the garbage can.
Translucent tan, quad shield, stranded center
From amp's S/R>D'lator
308K and I had to go through a few. FWIW, if you look at the way bass pot is wired which is as a voltage divider, I don't think there's much tangible difference in a 23K delta.
Tom, there's an art to scraping of which I have yet to figure out and how to not ruin three to make one.
) Probably a little of both.
