HFU HF Underground
Technical Topics => Equipment => Topic started by: ThaDood on May 23, 2024, 2019 UTC
-
With the Vinyl Revival now in a full-swing, let's talk about gear to use with that vinyl. OK, you have a couple of turntables, that use magnet cartrige pick-ups, but no line-level preamps built-in. You could buy a Magnet Level to Line-Level extrnal preamp, but one tool that I've always found useful, from the 1980's, 1990's, and even more so now, are the cheap Radio Shack, Realistic Mixing boards, CAT # 32-1200 and #32-1100, as seen from this link. https://www.radioshackcatalogs.com/flipbook/1986_radioshack_catalog.html?fb3d-page=53 Many of today's cheap and moderately priced mixers do not have an input for Magnet Cartrige Level turntables, but these mixers did, and are still widely available used. Yes, they will require clean-up, and some maintenance, like spraying contact cleaner in the slide POT's, RCA Phono Inputs / Outputs, switches, Cue buttons, and headphone jack. However, very doable. Want to add cassette decks, DVD audio, CD payer, Open Reel Deck, MiniDisc, 8-Track, MP3 audio, or something else? These mixers will still perform and be very valid to do so, today. I, have several of these mixers in my production A/V studios and On-Air Part 15 studio, and they are by no means obsolete. If, you see them for cheap, don't pass them up.
-
I think I actually have one of each of those sitting in storage, from back in the day when I used them to feed audio from multiple radios to speakers, computer line inputs, etc.
-
Yep, great for that as well, where multiple inputs, to a single outlet, is needed audio-wise. And yes, these mixers were, and still are, used by pirate ops. Dirty little secrete is that they were also used at college, and even commercial, radio stations. Hey, frequency-wise you've got broadcast spec's. Yes, engineers will gripe the the S/N Ratio might not quite be broadcast specs, but over-the-air, would the listener ever guess that? I doubt it... The bonus of these mixers is the fact that they are old-school, through-hole tech, meaning repairable by most folks and even some 21st Century upgrades could be added, like white LED's to the VU meters. And, schematics are still available for those. (Hmmmm... I wonder if I should scan and upload those to my Archive .ORG page?) And, you will still see these at flea-markets, Hamfests, junk stores, garage sales, whatever. If you see either model, 32-1100, or 32-1200, grab it.
-
I used the $24 to record three demo CDs back in the day. I had two of them. One set up permanently for the drum set mics. The other one was to mix front mic / room mic for vocals and guitars. Very handy little devices.
-
With the Vinyl Revival now in a full-swing, let's talk about gear to use with that vinyl. OK, you have a couple of turntables, that use magnet cartrige pick-ups, but no line-level preamps built-in. You could buy a Magnet Level to Line-Level extrnal preamp, but one tool that I've always found useful, from the 1980's, 1990's, and even more so now, are the cheap Radio Shack, Realistic Mixing boards, CAT # 32-1200 and #32-1100, as seen from this link. https://www.radioshackcatalogs.com/flipbook/1986_radioshack_catalog.html?fb3d-page=53 Many of today's cheap and moderately priced mixers do not have an input for Magnet Cartrige Level turntables, but these mixers did, and are still widely available used. Yes, they will require clean-up, and some maintenance, like spraying contact cleaner in the slide POT's, RCA Phono Inputs / Outputs, switches, Cue buttons, and headphone jack. However, very doable. Want to add cassette decks, DVD audio, CD payer, Open Reel Deck, MiniDisc, 8-Track, MP3 audio, or something else? These mixers will still perform and be very valid to do so, today. I, have several of these mixers in my production A/V studios and On-Air Part 15 studio, and they are by no means obsolete. If, you see them for cheap, don't pass them up.
Thats awesome going to keep my eye out.. Ive been looking for something easy to use.
-
They were the mainstay of UK pirate radio back in the day!
Radioshack (or Tandy as it was called in the UK) had them flying out the door ...
Maplins had similar, but not as cheap!
-
Folks have requested these, now you can download them. The Realistic, Radio Shack, 1980's Mixers, #32-1100A and #32-1200C, models that I had manuals / schematics for on there. Yes, they are just scanned and uploaded .PDF's, but anyone should have the capabilities to Rotate LEFT / RIGHT. https://archive.org/details/realistic-32-1100-a-1980s-mixer-manual and https://archive.org/details/realistic-32-1200-c-1980s-mixer-manual
BTW, the last page on those manuals are included schematics. (Damn, I miss when they did that.) Hopefully, that works. Oh yeah... While you're there, see what else you'd like to check-out on that page, https://archive.org/details/@thadood
-
I’m getting ready to fire mine back up.
https://imgur.com/a/VfnBbUg
-
The 32-1200 was my first mixer back in the early 80's. I used it to DJ and run a small pirate station from my apartment in Chicago. I had the telephone suction cup mic that I would use to have callers on the air. What fun. I graduated to a Numark that had 4 seconds of assignable sampling as I was mixing a lot with 2 Techincs 1200 MKII turntables. What memories. Now I use a Numark CD mix to DJ with CD's and my laptop. Wish I still had my 32-1200. So many uses.
-
Do these have a Mute control or input line?
For that matter: Is there a rack-mount equivalent which does?
-
Mute Control? Well, they both have a CUE Button, that mutes audio from going out the Line-Out, and only to the headphone jack, to cue-up turntables, or a tape deck. BTW, the CUE Controls are for each Input Line, except the Mic Inputs. Rack mount??? Being only about 1ft wide, a bit small for 'Rack Mount'. Well, I say that, when I actually have a #32-1200 mixer mounted to the right side of my home-brew, wooden, A/V production rack. I have the mixer's bottom mounted on a couple of set screws. You can see what these mixers look like in this Radio Shack catalog page link. https://www.radioshackcatalogs.com/flipbook/1986_radioshack_catalog.html?fb3d-page=53 And, look at, or download, the manuals on my Archive page. https://archive.org/details/@thadood I hope that these answer some questions.
-
Do these have a Mute control or input line?
For that matter: Is there a rack-mount equivalent which does?
For anyone coming across this thread and needing a mixer with a Mute input:
The Rolls RM67 is such an animal. 3 Mic and 5 Source inputs, with a Mute (to ground) connection which knocks everything down. I'm going to use mine in the same manner as my NCS-3230s but with a slight twist: Two of the Source inputs will be fed by cascaded mixers - a Rolls RM-219 on one side of the room and a Roland M-120 on the other. Those get the inputs from secondary receivers, PC sound card outputs, what have you. The three Mic inputs (configurable as Line inputs) and the other three Source inputs will receive high-priority traffic from assorted scanners and receivers. Any time anything in the shack goes into transmit, the Mute line will silence the mixer.
As I find other mixers with this capability I'll update this post (if possible) or reply to it (if not).