Bogner - Ecstasy Red

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
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Post by Intripped »

Stephanovitch wrote:This is secret part of red ecstasy: ... d.pdf?dl=0
thanks Stephanovitch!
...for future visibility i've uploaded the image here on the forum, hope you don't mind
Bogner ecstasy red.png

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Post by Lithium_Grim »

Can anyone tell me what the structure is switching in all 3 positions? I guess it is a DP3T On-Off-On of sorts. and I can see tha in 1 position a 680p is on 1 side engaded and a 2200p on the other side. But what other components are involved?

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Post by snakepit86 »

Hi everyone

This is the best i can do with the secret part layout

There is some missing parts, all transistors are the BS170, i guess the 680nf and 4,7uf caps go with some source resistors

If anyone did some further research please post


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Post by POTL »

It’s really bs170?
Where j201 from picture?

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Post by hendrox »

The J201 is the booster side on the front end, The schematic in the goop is nearly identical to Box of Rock. But it runs with 27 volts if I remember correctly. I will try to build a box of rock without tonestack and add the TS traced up here to check the results. The Box of Rock's gain section ( 1st stage source pot) will be 1k or lower value with a bypass to see if it works.

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