BBE - Windowpane

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BBE - Windowpane

Postby jinx1499 » 04 Jan 2019, 04:05

mirosol wrote:Anyone seen the guts of BBE Windowpane?


Here are some gutshots of the BBE Windowpane.


Since it's based on a Fuzz Face, I'd love to get this gut close to an Eric Johnson Fuzz. Any ideas?
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BBE Windowpane

Postby Manfred » 04 Mar 2019, 23:54

I create a incomplete layout copy according the guts here:
http://freestompboxes.org/viewtopic.php?f=1&t=2072&p=273581&hilit=windowpane#p273581
There are missing component values and tracks, thus the schematic is incomplete too.
The circuit is a Silicone-Fuzzface clone.
BBE_WindowPainLayoutPart.JPG

BBE_WindowPainSchematic.JPG

I would be very grateful if anybody can fill in the missing values.
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Re: BBE Windowpane

Postby mictester » 05 Mar 2019, 00:39

Here's my take on the circuit. If you include an additional 100pF from base to collector of Q2, it will sound very close to an old germanium Fuzz Face without the hiss!

BBE_WindowPainSchematic.jpg


Remember - you need to use the lowest Hfe transistors you can find. I've had great success with medium power devices (BFY50 used to be a good choice) and the transistors inside the transistor array chips.
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Re: BBE Windowpane

Postby Manfred » 05 Mar 2019, 16:34

mictester wrote:Here's my take on the circuit. If you include an additional 100pF from base to collector of Q2, it will sound very close to an old germanium Fuzz Face without the hiss!

BBE_WindowPainSchematic.jpg


Remember - you need to use the lowest Hfe transistors you can find. I've had great success with medium power devices (BFY50 used to be a good choice) and the transistors inside the transistor array chips.

Thank you very much for these helpfull hints.
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Re: BBE - Windowpane

Postby modman » 31 Dec 2019, 23:33

moved the gut shots into this thread
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