Conqueror

D

delayed

Active member
Hi all, I am building a conqueror fuzz for a friend. Having a bit of an issue finding the BC548. Is there a sub NPN that will sound the same? Would the BC548b be fine? Or something else that is closer? Is this just a jellybean type and any simple NPN type will be okay? BC547, BC549, 2N2222, 2N3904, BC550. Just trying not to order from so many places.

And for the Fasel inductor, I am looking at the Dunlop red for $20 and the ME6 from stomp boxes $7.50. https://stompboxparts.com/transform...ctor-me-6/?searchid=950271&search_query=Fasel

Any real difference in the sound? Or which would match the original the closest?

Thanks for any replies.
 
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grain of salt: I've not built mine yet, but...

Any of those would work. I'd tend to go for BC549, as it is low noise. Then again the BC548b might be just the ticket for bass, assuming that the original spec is for BC548c (tiny-bit higher hFE).

Install sockets, audition transistors while minding the pinout of each and when you've found the chosen ones, solder them into the sockets to appease the socket-haters (as opposed to removing the sockets and lifting a trace or pad — or just breadboard the whole schebang).

I don't know what was originally in the Conqueror, but

Dunlop RED FASEL: 563mH / 17.5 ohms​
​
ME6: 570mH (+/- 10%) @ 1kHz, .3v​

I like the ME6 a lot. Great value for money, have it in a fixed wah pedal.
I have a Red Fasel, too, but as mentioned, haven't built my Conqueror yet.
 
Generally you want close to double voltage, so a 9v circuit will be just fine with 16v caps, 12v circuits with 25v caps, and 18v circuits with 35v caps. It's not a concrete rule of thumb but it helps as a guideline. Just make sure the caps match that part of the circuit, there are some projects that have different voltage points because of a regulator, divider, or charge pump.
 
None of those voltages are fitting in that space. Thinking 12v or lower maybe. Just wondering what other people used before some off board wiring takes place. :)
 
There is a build report on this forum from a memeber that said he found a couple 16v 470uF that are 7mmx10mm, so that is probably what you are going to have to search for. Are you continental US or in Europe?
 
That means you have options outside of Tayda. Stompbox Parts, Synthcube, and Mouser are my go to sources. I will also echo that BC548 will work just fine, if you want to be vintage you can source BC108, which the BC548 replaced.
 
Any chance the primary dot on the coil matters which side it mounts to? Looks like it should be on the left side technically if I am reading the schematic correctly. Using the me6.
 
delayed said:
Any chance the primary dot on the coil matters which side it mounts to? Looks like it should be on the left side technically if I am reading the schematic correctly. Using the me6.
Click to expand...

I'd hazard a guess that yes, it matters, since the PCB has a label on it: "PRIMARY".

From other build reports...

SYNCHRONY's:

img_5202-jpeg.53984





HARRY KLIPPTON's

1000001922-jpg.62392
 
The left two and bottom pads are the same per my meter. And the right top and bottom pads are the same. I was guessing the top marked primary is for maybe a Fasel inductor or 42tm014 type. Both of the above picks shows the prime dot on the bottom right.
 
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I hoped the pics would help. 🤷‍♂️

I just like the ME-6, great bang for the buck.
Both Synchrony's and Harry's builds work well according to their build-reports.
IIRC, I positioned the ME-6 in my Station Wah at the same angle.

Might be some useful info here...
Particularly Robert's post in the thread.

... and possibly here.
 
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