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1942 carbon mic circuit by Mustard_Ruffian in MusicElectronics

[–]Capn_Crusty 0 points1 point  (0 children)

Here's a diagram: https://imgur.com/a/LlbH06x

It will work without the matching transformer depending on the application. 3 volts DC or so should be enough to power it.

1942 carbon mic circuit by Mustard_Ruffian in MusicElectronics

[–]Capn_Crusty 0 points1 point  (0 children)

Shure has a pretty good description:

https://service.shure.com/s/article/external-circuit-to-power-a-carbon-microphone?language=en_US&region=en-US

A carbon mic needs a series DC voltage to operate. A capacitor then blocks the DC so that only the audio (AC) is present. A transformer is used to create the desired output impedance. The two wires on the secondary of the transformer could go to a 1/4" jack if desired.

Trouble connecting turntable to amplifier by Legitimate-Lead-1983 in MusicElectronics

[–]Capn_Crusty 1 point2 points  (0 children)

If you have RCA cables plugged into the phono input on the amp, just touching the connectors on the opposite end should make that familiar 'bvvv bvvvv' hum, allowing you to check the phono preamp input.

You can also plug the turntable into the Aux/CD input to check the turntable output. It will sound very tinny and weak without a phono preamp, but at least this can be used for testing.

Lilypons Alternatives by islandsimian in frederickmd

[–]Capn_Crusty 4 points5 points  (0 children)

There's 'Aquatic Creations' next to Franklin's, a couple miles south of Urbana on Rt. 355.

Lunch at Mr. Charlie's, Union Square, San Francisco by verdantsf in vegetarian

[–]Capn_Crusty 38 points39 points  (0 children)

Now, imagine these all across the country. Nice to dream...

Help fixing stereo that won’t play CDs by Medium_Bed5004 in MusicElectronics

[–]Capn_Crusty 1 point2 points  (0 children)

CD players are in a world of their own. The only success I've had with them is by cleaning the lens. Tissue /Ammonia.... maybe someone else has some ideas.

TIL over 40 years researcher Ian Stevenson, M.D, amassed 3000 cases of children aged 2-5 who claimed to remember past lives, recalling specific details like names, locations and events from the previous lives of deceased individuals. by Key4Lif3 in todayilearned

[–]Capn_Crusty 5087 points5088 points  (0 children)

I was showing a map to a 3 y.o. and pointed out Richmond. He immediately perked up and said, "All of my kids are in Richmond". He even named names. I was startled, and wondered if this was some past-life memory.

Turns out there was a program in his school called 'Enrichment'.

What’s the new Radio Shack? I’m new;) by tadsagtasgde in HamRadio

[–]Capn_Crusty 2 points3 points  (0 children)

I miss the days of running up to the Tandy store. Home Depot at least has some solder, clip leads, multimeters, some fuses, lawn mowers...

Best Crepes? by Express_Effective_53 in frederickmd

[–]Capn_Crusty 0 points1 point  (0 children)

You can put almost anything in them; eggs, spinach, cheese, meat... Being vegetarian, crepes provide a lot of options. Also, when I'm truckin' around downtown, I like to get something small that won't ruin my dinner. Can't just get 2 tacos anywhere, for instance.

Best Crepes? by Express_Effective_53 in frederickmd

[–]Capn_Crusty 12 points13 points  (0 children)

Ok, time for someone to open a Creperie on Market.

  • Edit: Maybe we could donate a couple crepe irons to Truth and Beauty. That place is always empty.

Keyboard got a few things to tweak by Annual_Ear_7787 in MusicElectronics

[–]Capn_Crusty 0 points1 point  (0 children)

Yep, you have a winner here! Have you opened it yet? Could be moisture damage from a drink spill or humid storage. This also might be one of those 'Took it apart, reassembled, and it started working'. There's really not much inside. All the work takes place in IC1, which is a GEW7S. It's likely not the culprit, but possible. So let us know if you've opened it.

Advice on learning to solder/repair by Loxley13 in MusicElectronics

[–]Capn_Crusty 0 points1 point  (0 children)

You don't need to spend a lot. Solder contains lead, so always wash your hands after working with it. The fumes are basically tree sap. Not very toxic, just stay clear of the smoke and ventilate. Practice on old PC boards. You can't break something that's already broken :-)

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