More Log for Fender Tweed Deluxe Volume Pots

[jwhousley]

Anyone know what pots were used in the Fender Edge Tweed Deluxe?

[ChopSauce]

Any reason to suspect that their values are not the original ones?

I see no reason why the pot values would have been changed & even less for which ones.

Apart from the expensive speaker, tighter bottom end than the original sounds like more filtering (through smaller filter caps) and beefier output transformer, to me. I might be wrong, though.

[Stevem]

Do you have a issue with the volume pot in the edge?

[pdf64]

I recall seeing a 5% taper spec on some Fender schematics, which might satisfy the ‘more log’ criteria?

[ChopSauce]

My bad! Now I figure myself the "more log" ...

So that would mean the "The Edge" one has "normally bad"(*) log pots, while the vintage one had some (good) 5% taper ones?
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(*) https://guitarnuts2.proboards.com/threa ... llTo=84298

[jwhousley]

I recall seeing a 5% taper spec on some Fender schematics, which might satisfy the ‘more log’ criteria?

Ahhh... I was curious as to what the difference was... if there was any at all.

[ChopSauce]

I just read some comments about tweed volume pots. It mentionned that some pots, with a less steeper curve would allow for better dialing the volume at low levels, on the edge of breakup.

Then I remembered this post and felt like I've been overlooking that point.

This

Tapers_comparison.png

curve (from https://guitarnuts2.proboards.com/threa ... llTo=84298 ) suggests that the CTS pots would allow for a better response than the alpha I've been using, notably.

Any additional comments - example given: about an even better solution?

[pdf64]

For the past couple of decades at least, CTS have been just crap, an absolute joke, the elongated metal CCW track end means that 20% of the mechanical rotation produces no electrical change.


The benefit for CTS is that the same track can serve for pots with a rotary on/off switch. Yay, cost saving!
The downside is that every other pot doesn’t respond until it’s rotated more than 20%. Boo, previously great company brought down by penny pinching.

I only use CTS when no other option is viable, eg pull-push pots.

[Colossal]

Anyone know what pots were used in the Fender Edge Tweed Deluxe?

I believe the "special" audio taper in those amps was 10%.

[professormudd]

For the past couple of decades at least, CTS have been just crap, an absolute joke, the elongated metal CCW track end means that 20% of the mechanical rotation produces no electrical change.

Man, that explains quite a bit. I did a D-Lite and used all CTS pots and I thought they behaved really weird and it was very frustrating.

[ChopSauce]

I found another schematic on the web, which shows a step in the response of a CTS pot, in the last degrees of rotation. That is consistent with your gutshot of a CTS pot...