Roland JC-120 Jazz Chorus Amp Clone

[bOTL]

Let me see what I can do....

I would purchase at least 2 pcb's if not more.

 

[cocoamousse]

Let me see what I can do....

oh oh oh : )

 

[john65b]

Amp/Pre in initial posting no longer for sale!!

 

[Wickiser]

Did you ever get more PCBs?

 

[john65b]

Shoot - forgot...I will try to see if I can order some today...Sorry

 

[john65b]

OK, just ordered another Batch - thanks for the heads up - been a bit busy...

2 - 3 days in production an should be in my hands no later than two weeks....I will post back when I get them.

Thanks

 

[john65b]

OK, got more JC120 Preamp PCBs...let me know if you want one...

$5 + Shipping. When complete, it would be great if you guys can donate to the DIYAudio site - maybe another $5 or $10?

The four FETs are still backards...so reverse them (I did not correct)

 

[mbose]

Just found the thread but would love to get a pcb if you have enough. Thank you for doing this and happy to donate to forum!

 

[john65b]

mbose - PM me on you address

 

[Alesono]

Hola, tienes disponibles amplificadores?

 

[planet10]

Hello, do you have amplifiers available?

English please.

dave
diyAudio moderation team

 

[mbose]

Just received my board-- very nice!!

Thanks again!

 

[john65b]

Good deal...remember to reverse the four FETs

 

[bOTL]

I would like 4 boards will send a PM

 

[john65b]

PM finally answered (sorry so late!)

 

[lizardboy]

Hello;
Joining the party. I'd like one of these boards as well If you have extras.

If you could send me a message I have not posted enough here to be allowed to send you one

 

[stoddots]

I would love to grab a PCB as well! PM me too, I’m new to this community!

 

[BrimstoneUSA]

I too wouldn't mind one of these PCB's but cannot send a PM. Please message me...

 

[john65b]

PM sent

 

[stoddots]

Got mine in the mail! Thanks so much john!

Wondering if you all can help me troubleshoot… Using a 19.5v laptop power supply and using a cheap Lepai power amp to test functionality. Sounds like I have some oscillating happening.

What might be the potential culprits? I was able to purchase the BOM as-listed on Digikey, but ordered some 2SK117GR via Aliexpress (culprit?)

Here’s a video
https://streamable.com/rffu0l