Capacitors for BAT VK-60

If you feel that V-caps TFTF are too high an investment, check out the Solen FEP TFTFs.

http://www.solen.ca/caps/fet.htm
Do note that these are the green ones, using same TFTF Tin Foil Teflon Film construction. They are also about 30% smaller than the V-caps with same values.

The blue ones are not the same in construction, not TFTF.
http://www.solen.ca/caps/fep.htm
Do note that they are rated at 450Vdc. The 1000Vdc ones are very expensive.

In another amp, we have done up quite a couple of tube amps with the V-caps, used as coupling caps. My own amp is done up with Solens, and 2 others as of now. My comment is that there is very little difference between them, maybe the V-cap is just that wee little bit more detailed and transparent. Both caps transform the stock amp dramatically, it is quite an improvement from the Mundorf Supremes that I changed out (already modded state). We also scoped the tube amp outputs at 1kHz and 10kHz, it looks very good and very much better than other the usual audiophile caps. I don't think you will notice any difference between V-cap/Solen TFTF unless your system is absolutely top-notch.

The Solens will be a very viable choice if your amp has quite a number of high uF caps to change out.

Yes I know Solen has a bad rep for its much lower cost Fastcaps, but this TFTF type from Solen simply bears no resemblance to its lower-range siblings.

2100, what's your source for the green Solen tin and foil. I just looked at the parts connexion catalog and they stock only up to .47uf values and the Solen site you gave show only up to .82uf. I'm looking for 1uf and above.

Hello Sherod, my source for the caps is in Singapore. Anyway, Solen does not manufacture more than 0.82uF for the 450Vdc versions. If you need 1uF and above, I guess you can try paralleling them (when you parallel caps, the capacitance add up, eg 0.5 + 0.5 = 1.0). They are non-polarised. Before you do anything, do give SCR or Solen an email.

Given their lower cost, just 2 or 4 Solen FEPs should be pretty manageable. Good luck! :)

Capacitors, resistors, int.wiring...

Capacitors: Is it correct if I'll use bigger values?
Right now is 0.22mf.What if I put a pair of 1.00mf ?

Resistors: Which resistors are the most important in vk-60 for change ? In what position ? Does anyone knows that?

Internal wiring: Any suggestion ? What if I replace that grey Belden ? Perhaps with Kimber ?

Thanks

Viewed through the side or bottom cover, you’ll see four 2”L x 3/4”W yellow/green caps across the PCB beneath the 6C33C tubes. The caps are marked Balance Audio Technology ..22uf/630V. They can be desoldered without removing the main PCB, and replaced with four V-Cap TFTF .22uf/600V. When installing the V-Caps, face the red lead to the rear of the chassis and the green lead to the front. Put a piece of Radio Shack double-sided cushioning tape between each cap & the PB.