polyphase question

Started by lowstar, July 15, 2006, 09:14:35 AM

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lowstar

hi y´all,
a quick question about the polyphase, nelson´s layout...there is a resistor in the upper third of the board in the middle, between 2 jumpers, above it are a 1µ electro and a 0.0082 poly, and below is a 27K resistor and a 22µ electro:
i can´t quite decipher it, it looks like 4.7R to me, but there is no such value on the parts list, but two 4K7 resistors, on the schemo (the deluxe phaser one) it looks also like this is 4K7...
so, is it 4.7K or 4.7R ??

and since we´re at it, i guess the electros in this circuit have to be at least 25V ?
one last question: will i be able to run it with a 24V EH wallwart, or does it have to be 18V ? (i don´t know if the voltage regulator circuit in the circuit can cope with 24V, but i´d have one from my bass micro synth)

cheers,
lowstar
effects built counter: stopped counting at 100

nelson

Quote from: lowstar on July 15, 2006, 09:14:35 AM
hi y´all,
a quick question about the polyphase, nelson´s layout...there is a resistor in the upper third of the board in the middle, between 2 jumpers, above it are a 1µ electro and a 0.0082 poly, and below is a 27K resistor and a 22µ electro:
i can´t quite decipher it, it looks like 4.7R to me, but there is no such value on the parts list, but two 4K7 resistors, on the schemo (the deluxe phaser one) it looks also like this is 4K7...
so, is it 4.7K or 4.7R ??

and since we´re at it, i guess the electros in this circuit have to be at least 25V ?
one last question: will i be able to run it with a 24V EH wallwart, or does it have to be 18V ? (i don´t know if the voltage regulator circuit in the circuit can cope with 24V, but i´d have one from my bass micro synth)

cheers,
lowstar

The resistor is 4.7r, I must have missed it when doing the parts list.

A 1 amp regulator will be able to handle 24v. However it will get hot.

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Winner of Mar 2009 FX-X

lowstar

thanks, nelson !

cheers,
lowstar
effects built counter: stopped counting at 100

puretube


Dave_B

Quote from: lowstar on July 15, 2006, 09:14:35 AM
and since we´re at it, i guess the electros in this circuit have to be at least 25V ?
Since it regulates down to 15v you could use 16v caps.  Or am I missing something? 
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