What’s on *YOUR* workbench?
- Thread starter Bricksnbeatles
- Start date
DGWVI
Well-known member
@DGWVI
Another vote for the Square Wave, though, all the suggestions so far are great — I'd lean to the FY-2 if you've already played around with the Square Wave before. Always fun to have something new.
Tossing in a Toonie (2¢ after inflation adjustment):
ESR Graphic Fuzz
Penny Finger Print
View attachment 71814
I think I might still have some Finger Print boards on hand. If so, I'll build one up and see if I like it enough to put in one of these
PunchySunshine
Well-known member
Came in for no power. Wall wart is good. I'm hoping to get her going because I've never seen one of these.
PunchySunshine
Well-known member
I love those easy ones! Broken trace from the positive input to the first cap. I tried reflowing a few times but just gave up and jumpered it. Fired right up.
Strange instrument, definitely not for me.
Strange instrument, definitely not for me.
UtilityBeltFX
Well-known member
I thought I might like the Angry Charles better with Blue LEDs instead of Red. I do!
Still need to get some Ultraviolets to go even further down this rabbit hole.
Smrtokvitek
Well-known member
This is my progress with the Scenario from yesterday. It is still missing the LED and the enclosure (hence the 3D-printed jig) but is ready to play. Rocking the 555 relay bypass by @szukalski.
DGWVI
Well-known member
@DGWVI
Another vote for the Square Wave, though, all the suggestions so far are great — I'd lean to the FY-2 if you've already played around with the Square Wave before. Always fun to have something new.
Tossing in a Toonie (2¢ after inflation adjustment):
ESR Graphic Fuzz
Penny Finger Print
A little redundancy, but I've got a ton of BJTs taking up space
Cybercow
Well-known member
I'd worked on a few Arp 2600s when I was the synth tech at music shops in the UP and Greensboro areas. Even got my hands on Arp hex-pickup. Cool old synth.
Robert
Reverse Engineer
Erik S
Well-known member
I hadn’t heard of the hex pickup/ avatar - that sounds wild. Did you ever set it up?
Man. That's odd on it's own. Have you peaked at the PSU?
At that age, a recap is overdue.
3x opamps do just DOA. They were taken out back by something.
chris.knudson
Well-known member
I love the blue LEDs.
Erik S
Well-known member
I did recap the power supply right away. All the original caps were still good as far as I could tell.
I had assumed the same thing about opamps generally being pretty reliable. Apparently the LM301s are a really common failure point on these ARP synths though. To the point where some of the service folks recommend just replacing them all.
They are over 50 years old, so I guess they worked reliably for quite a while. This unit did a lot of gigging in the 70s and doesn’t appear to have any replacement parts so I’m impressed it’s as functional as it is.
Cybercow
Well-known member
Yes, I did. I had on my Strat for decades. I wired it with the same connector to fit the older Roland Guitar-MIDI Interface. But after they changed the connector style, I never bothered to change it and sold it last year for a few hundred zorkmids.
I hid the driver board under the faceplate and drilled out a hole for the 10-pin video connector jack to connect to the old Roland interface. The 10-pin cable carried the six pickup lines, ground and a +9V supply line.
JTEX
Well-known member
Squeezed yet another gadget in my cramped G&L control cavity yesterday. Let's see what's there so far... Bass/treble boost (the new guy with DIP switches), filter preamp, one-knob compressor, headphone amp/aux in, battery indicator. Oh look, there's still a bit of room on the left side. Hmm...
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JTEX
Well-known member
I've been procrastinating pretty hard about doing an onboard compressor video, since hardly anyone seems to be interested in the idea. Also, it's pretty hard to understand what a transparent compressor does if you're not the one playing it (you kind of have to experience how it responds to your playing). I do have a demo of my filter preamp: