Tube Amp Archive

JazzGuitarGimp wrote: Do tell ...... Where did you buy them?

This place:

http://www.tubesandmore.com/products/C-S-600

Just received my 6PS caps in the mail. If you are making board from scratch do you rather put the solder points (turrets or eyelets) with correct spacing or strect the leads to fit places where axial caps normally are? For my blackface board I have been thinking of installing extra turrets so I don'...

How do air caps sound like? Airy?

Yes it doesn't affect amps, but I some of that soldering stuff very informative.

Bumped into these, Nasa doesn't like eyelets or components on top of turrets.

http://workmanship.nasa.gov/lib/insp/2% ... inals.html

http://workmanship.nasa.gov/lib/insp/2% ... ments.html

Double post. Has some email error showing.

Checked you have the caps around the right way and voltage share resistors correct - all looks OK. You have effectyively 33uF , 16.5uF, 16.5uF, 16.5uF Is that what you were wanting? Cheers, Ian Thank you a lot. Its good to have another pair of eyes to take a look. Those are the capacitances I plann...

I have most of the parts here. Did a sketch of the power supply board. Can anyone check if it looks ok?

ToneMerc wrote: Here's how I do the first cap bank, here's two 80uf caps.

https://tubeamparchive.com/download/file.php?id=24406

You have a wire under board from - of right side cap to + of left side cap? Very neat. What amp is this build?

Deleted some posts as I wasn't sure about my calculations. Anyways, I asked someone at F+T what I should use, and I was told 47K/1W. Illinois advises a R=10/C, capacitance in uF and resistance in MOhm. so 10/33=0.303M=303K etc... Illinois paper also has another technique: "To calculate the Balancing...

Anyways the load will be around 1.5-3mA of total current strain on the B+ line.

Classictone Deluxe Reverb PT is rated at 120mA and their Super Reverb PT at 200mA. It is not too much strain on the PT?

PS. The transformers have finally arrived and are waiting in the post, yes!

Yes but I mean for the leakage current of caps?

I am convinced there is something wrong with my calculation, I am not sure I should use the capacitance of the capacitor but half the total voltage?

The first filter cap section, the original has 70uF in series, so 35uF total.

But then again that doesn't take account the +-20 tolerance on cap sizes... I have a feeling (too tired to have anything more solid anymore!) that 220K for plates and 470K for rest will be good. Must continue tomorrow.