Joined: Jan Thu 01, 1970 12:00 am. Any input is GREATLY appreciated!! Reviewer: Srajan Ebaen. Hey there, I just got an old Danelectro Cadet, which is supposedly the same as the amp-in-case transformerless amp, but in a cabinet. Are they listed on Schematic Heaven under 1449 (for the 12AU6-50C5-35W4 version and 1457 for the 12AX7-12AX7-6V6-6X4 versions? 1448 Dano SSEG with tube ampincase VG $315 Clean, light wear, 'cord keeper' still present, some tape playing guides on fretboard, logo strong, case faded, transitional model with oval-button strip tuners, 3-screw neck attach & neck tilt. To keep the switching truly functional, we'll have to route it differently. 641/1210 Harmony FTAC VG $55 Clean, light wear, logo strong, nut shimmed two light cracks on bass upper bout. 14XX Series Dano Reverb/Tremolo Footswitch $63 Worn, a little oxidation around the button nuts, untested. I'm building a copy of a Silvertone 1448 case guitar amp (I will be using an isolation transformer, don't worry everyone) but I'm having trouble with the output transformer. An important safety feature in any amp is a valid external earth ground. I bought a Silvertone 1448 guitar and amp in case a few months back. Isolation transformer for silvertone amp in case of cold. Since more than half the load of a small amp is resistive (the tube filaments), and 70% of 50VA is 35 watts, then a 50 VA rated transformer should be fine. My mother ordered me to clean all my electronic junk out of her attic about three years ago, and I found it.
3v of heater voltage supplied by modern tube amp power transformers. That sounds like a lot but remember the tube heaters will be powered by this transformer too. Connect the isolation transformer secondary (output wires): one to chassis ground (should be separate from the safety chassis ground) and the other wire to the original fuse side terminal wire. Isolation transformer for silvertone amp in case of rain. The wire can then be fed through the chassis using the original power cord entry hole. The schematic has a tiny isolation tranny to isolate the preamp filament. We're just feeding the second rectifier a current source that's.
That's SO close to a standard value... 470 ohms is the new Rv resistor value. Hello all, I have two of these fine amps and I am wondering how to get my hands on the schematics. You won't have a problem working on it. Silvertone, or Danelectro, they're the same.
Zenith82 wrote: From your post, I gather that your amp is built into the guitar case? HBEG w/ C G $450 Clean, some wear, logo has glue residue from where it was 'shamed' at some point, gold finish worn from metal parts, wood inlay missing from whammy, weird dots in finish (mold damage? 1449 Dano SSEG guitar only MOD $250 Clean, NS humbuckers, NS knobs, pickguard cut to accommodate pickups, logo strong. As discussed in the "half-wave" step, there are several way to do so. I think I have begun a journey to actually learning a thing or two about a. crucial subject, but for now I am overwhelmed to the point that I've. I also have a 1472 that I rebuilt. I knew this song was part of the "Elvis' Christmas Album, " released in late 1957, but what I didn't know (until stumbling across this industry ad in my year-long search for all things 1964) was that it wasn't released as a single until this week 50 years ago! But again, this is true of any amp with a two prong power cord and a death cap. Silvertone 1448 Amp in case. 603 Harmony FTAC VG $155 Clean, light wear, a few scratches on top and back, logo strong, stamped F-66. Really GASing for it. Joined: Thu 01/29/04 2:00 am.
So clear up what is bad about this. Put a 57 on em and pump em through a PA and look out!! Like any small amp it sounds much better through bigger and better speakers. Little o' This, Little o' That.... 605 Harmony FTAC VG $45 Clean, some edge wear, logo strong, light rust to tuner plates, (1) tuner bent, stamped F-64.
Thanks for your help! To help us achieve better transformer designs, we have built proprietary test equipment that allows us to measure the transformer under realistic load conditions. The amp can't use the typical 6. The circuit is laid out to provide for the shortest signal paths and noise isolation. Or Honkey Tonk Women. "This was owned by a European polka band who painted all their instruments red and white. I've moved the initial SS rectifier ground directly to the bolt that holds the rectifier to the chassis. Danelectro Cadet 123 1964 Amplifier-needs work | Reverb. Welcome To the Hoffman Amplifiers ForumMarch 11, 2023, 03:10:57 am. That kind of voltage can be lethal, in any case very painful.
5A for the externally accessible mains fuse at 115/240 of line voltage respectively. There are other ways, of course. This old topic is closed. Guitar and amp were purchased from GC about a week or 2 ago, looks to be a 1448.
A bolt-on type of rectifier was used. No fuse in the circuit. That I am sure some creative soul could get some decent sound out it. This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. The signal path only sees the 300B, our Permalloy output transformer and a big oil capacitor instead of detouring through the power supply. Isolation transformer for silvertone amp in case of cancer. This has made the little Gregory amp almost totally free of nasty hum.
Wire 2) to the chassis ground. 2Vrms input sensitivity for full output -- and on the other half with the power inlet -- 3. Choose a link from the. Review Component Retail: $4, 200 with all tubes included as reviewed. I liked the way it looked, the price was. This is why these types of devices are called "widowmakers". Attaching the earth ground (from the three-prong plug & cord). My friend, author Alanna Nash is the groovy drummer there in the back.
The old AC-to-DC formula is in DC voltage is approx 1. I used plastic wire channels to fix the cord in place. We are currently expanding our dealer network and welcome any interested dealer. Joined: Tue Jan 29, 2013 11:12 am. Um... "Google Eye"... not so much. It's very typical of this amp type. I'm hoping for a check-list kind of guide or rules set or possible scenarios. Speakers: Zu Cable Definition Pro; Gallo Reference 3. Step 8: Fixing the Half-wave Rectifier Problem. Since rectified AC (pulse DC) holds the same potential as regular RMS AC, the total voltage doesn't change.