MM Matchless Footpedal PT for D-Lator?

[trane34]

Hello all! I wired up a Mercury Magnetics Matchless Footpedal PT using the one of the d-lator schematics here on the board. My voltages are only 250 and 245. Will these work? If not, how can I raise them? Thanks for any help y'all can give.

[ToneMerc]

Those lower volatges changes other circuit parameters. First I would change that 15K to a 1K and see what the voltage is at the first filter cap.

TM

[hans-jörg]

Hello all! I wired up a Mercury Magnetics Matchless Footpedal PT using the one of the d-lator schematics here on the board. My voltages are only 250 and 245. Will these work? If not, how can I raise them? Thanks for any help y'all can give.

Hi,
do you have no loading cap? Only 2 filter caps?
The 15 k to 1k. But thats already written

Hans-Jörg

[glasman]

You can also try using a bridge rectifier with the transformer. Should give you a better chance at hitting the required voltages. Should deliver close to 400VDC using a bridge. With 20ma of current, you have more than you need. Total draw for the loop is on the order of 2.5ma or so.

Definately add a cap after the diodes to help keep the DC level up help in the regulation.