Monday, October 17, 2016
Walrus Audio Mayflower
Here's the Walrus Audio Mayflower, which is essentially a hybrid between the Tube Screamer and the Timmy (which has its roots in the TS already). Originals use a second dual opamp for buffering the voltage divider, which in this instance seems to just be unnecessary, so I've omitted that.
4148 for D1-2?
ReplyDelete2n2222 for mpsa18?
Yes to D1-2. Try 2N5088 or 89 for Q1-2.
DeleteThanks bud, I'll start in a moment
DeleteIs it right to use 4148 for D1, D2??
Deleteyes
DeleteVerified. Thanks for the great layout.
ReplyDeleteAwesome. Thanks for verifying!
DeleteI built it using 2 5089, but when I connect it to power, the JRC4558 gets really hot. what could possibly happen bud?
ReplyDeleteI use 4007 instead of 4001. would it be problem?
DeleteThe 4007 is fine. Does the effect work? Or does the IC just get hot? Have you tried other ICs?
DeleteThe 4558 just gets hot without produces any sound.
DeleteThen you've probably got a short from the pin 8 to one of the other pins.
DeleteVerified, using 2n5089
ReplyDeleteI built this one today, works perfect.
ReplyDeleteAmazing OD, very transparent.
Thank you for another great layout
Just finished mine, and somehow my 3pdt switch is popping while activating effect, even with no diode, what can it be?
ReplyDeleteTry running a pull down resistor from the board out to ground. 100k is where I'd start.
DeleteПривет! А как ты футсвич конектил? по какой схеме?
DeleteThere's a mistake on the schematics that circles around the internet. The 10k resistor on the buffer isn't right, it should be just like the buffer on the Tube Screamers. This corrects the switching pop
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteEu a partir do layout, fiz o schematic e não vi nada de errado, realmente o resistor de 10K que vai para o terra são iguais o do Tube Screamers, BB Preamp, AC/RC Booster dentre outros...
ReplyDeleteEu não vi erro nennhum...
ReplyDeleteWhat type of capacitor 1uf?
ReplyDeletedo you have a schematic?
ReplyDelete