Board Mounted Pots in Preamp ??

[Enzo]

16mm is very common, so look for a 250k audio taper 16mm pot. preferably with the shaft style you need.

[Leo_Gnardo]

I am sure it is a 16MM on my $10 caliper it measured 15.61MM....

Here's one at Antique:

https://www.tubesandmore.com/products/R-VBM

Has lug not PC legs, and the chart claims 10% instead of 15 "audio taper". Close enough for rock n roll. When ya can't find the exact item, gotta compromise.

Mouser has several choices, solder lugs not PC mount again. Also two choices of number of "bumps" on the spline/knurl: 18 or 24. That may matter if you don't want to have to hammer your knob on. Here ya go:

http://www.mouser.com/Passive-Compon...yhozxvZ1yzxmva

I also looked at Little Bear and Apex Jr, no dice. Not much luck at Newark & DigiKey either. Drat.

[nickb]

>>Splined split shaft PCB mount<<

[Jazz P Bass]

Unfortunately, the shaft length has not been provided.

http://amprepairparts.com/pots.htm#marshall16

RV16AF-20-15K-A250K-3 Alpha (Taiwan) | Mouser

[dumbassbob]

thanks Jazz P. the amprepair site had what I need..It might be a shorter shaft by a few MM ,but I will just put a different knob on..I would never of found the right pot...Thanks DAB

[dumbassbob]

I DAB fixed my Preamp...This Tech wanted over $200 to do it.. And with help of the forum and from Jazz P Bass I got The Right Part (Amprepairparts)...It only took about 1/2 hour ,being very careful.. and $3.00 for the pot and the pots are better than the ones in the preamp,.So I bought 6 250KA to do All the volumes It has a total of 16 Pots Both Channels The rest are 1 Meg and 25K...Thanks A lot... This was a big deal to me..