I found the following circuit diagram of the ECOREC 2 in tube technology in which some is noted.
I think its circuit structure was probably transferred to the semiconductor version.
I will have a look at it.
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- 11 Jan 2021, 19:06
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Binson e4t feedback
- Replies: 11
- Views: 506
- 10 Jan 2021, 09:44
- Forum: Boutique Stompboxes dissected...
- Topic: JHS Morning Glory V4
- Replies: 21
- Views: 3166
Re: JHS Morning Glory V4
In the above circuit with the LM833 IC the circuit to generate the half voltage and the bias resistor to the positive input of the OP-Amp are missing.
- 10 Jan 2021, 09:26
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Binson e4t feedback
- Replies: 11
- Views: 506
Re: Binson e4t feedback
I would say that the number of repeats depends on the level of the feedback signal. This would have to be increased by increasing the gain of the feedback stage or the amount of feedback signal in the mixer circuit. The schematic is difficult to read as there are very few annotations on the componen...
- 09 Jan 2021, 19:41
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
BTW, Manfred: perhaps you must check the connection of DISKANT potentiometer in your board, according to this new diagram ? I have this original circuit diagram already for a long time this was attached with the purchase of my trick distortion. The circuit of the treble control is shown incorrectly...
- 08 Jan 2021, 00:26
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
I found a bunch of SC207 transistors in the box of the Trickverzerrer, I obviously bought them back then after I bought the unit, I didn't remember since that was a long time ago. But anyway I am glad about it. The SC207 has the same data as the SC206 with the difference that this one is selected fo...
- 07 Jan 2021, 14:01
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
I think you need the power filter cap after the 270ohm resistor not before, other than that it looks the same as mine in terms of components in the right places. If it's a componet value issues that is making it not work maybe raise the value of the resistor going been Q1 base and Q2 emitter. The v...
- 05 Jan 2021, 23:55
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
Here is the schematic of my device.
It does not work, after the repair I will make some measurements.
It does not work, after the repair I will make some measurements.
- 05 Jan 2021, 17:03
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
I meant the "diskant" control, this is shown correctly in the hand drawn circuit diagram of TWSpedals.In addition, the shown circuit of the treble control in the schematic is wrong.
- 05 Jan 2021, 01:48
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
Here is the PCB layout, the schematic will follow soon.
I found some differences, R3 = 2k2, P1 = 25k,
R6 = 15k and D1 = GA101 in my version of the device.
In addition, the shown circuit of the treble control in the schematic is wrong.
I found some differences, R3 = 2k2, P1 = 25k,
R6 = 15k and D1 = GA101 in my version of the device.
In addition, the shown circuit of the treble control in the schematic is wrong.
- 02 Jan 2021, 23:23
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
Now I have opened the case, the previous owner had exchanged the transistors T1 and T2 against BC109C, T3 has the imprint F18 C-1. At the right lower corner of the board, the conductor track and soldering eye are corroded obviously once the battery had leaked. I have a PCB clone in work soon follows...
- 01 Jan 2021, 17:27
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
The potentiometer type I have changed circuit diagram above.Renegadrian wrote: ↑01 Jan 2021, 01:26 small correction on the schem, gain is 100k linear not log. please change accordingly.
- 31 Dec 2020, 23:29
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Böhm- Trickverzerrer [schematic]
- Replies: 40
- Views: 9624
Re: Böhm- Trickverzerrer [schematic]
I bought a Trickverzerrer years ago, forgot about it and never touched it. I remembered it again through this thread. I took a few snapshots of it, will open it the next few days and trace. Trickverzerrer1.jpg Trickverzerrer2.jpg Trickverzerrer3.jpg Trickverzerrer4.jpg Trickverzerrer5.jpg Trickverze...
- 31 Dec 2020, 18:50
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
Here the verified layout and the verified circuit diagram.
- 31 Dec 2020, 15:51
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
Thanks a lot!Renegadrian wrote: ↑31 Dec 2020, 14:53 Right, I wouldn't read those damn resistors, I just measured with MM.
The previous image I uploaded has been updated.
Guess I'll transform it into a grey dod 250, it should be quite easy.
- 31 Dec 2020, 14:49
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
Did you read my previous post!? Yes I did, you wrote in the previous post: Got a problem with 1/8 metal resistors, quite difficult to read for me, guess it will be easy for others to complete the schem. Therefore I wrote: Can you please measure the values of the potentiometers and the resistors? I ...
- 31 Dec 2020, 06:57
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
Thanks, are the resistance values correct, have you already checked them?
- 30 Dec 2020, 23:38
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
This pedal is similar to the FAME Slasher DS-10, so I just had to edit its schematic. https://www.freestompboxes.org/viewtopic.php?f=1&t=30326&p=278466&hilit=Fame+Slasher#p278466 Can you please measure the values of the potentiometers and the resistors? BiyangTonefancierBlueBL-8Layout_2....
- 30 Dec 2020, 20:17
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: led weirdness in mxr m89
- Replies: 12
- Views: 585
Re: led weirdness in mxr m89
Maybe you have a high contact resistance in the chain due to a bad or broken solder joint, which can be responsible for this high voltage drop.
- 30 Dec 2020, 20:10
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Biyang Tonefancier Blue BL-8
- Replies: 17
- Views: 1473
Re: Biyang Tonefancier Blue BL-8
I made this PCB clone for tracing, can you please put the component values in the picture with the components.
- 28 Dec 2020, 10:20
- Forum: Boutique Stompboxes dissected...
- Topic: Loundsberry Nigel Touch Overdrive Traced [traced]
- Replies: 18
- Views: 1412
Re: Loundsberry Nigel Touch Overdrive Traced [traced]
The potentiometer in series with the clipping diodes corresponds to the saturation control on this website:
http://www.muzique.com/lab/sat.htm
I think the value here is also B10k.
http://www.muzique.com/lab/sat.htm
I think the value here is also B10k.