My friday night build of a FrankenAmp with half a broken photo frame and random bits. Sound is really quite impressive.
Amp: $17
Pot: $3
Broken Photo frame and random bitz: $0
Really Old Laptop powerpack 12v & 5v: $0
time: 1hr
Sound: priceless 🙂
Amp: $17
Pot: $3
Broken Photo frame and random bitz: $0
Really Old Laptop powerpack 12v & 5v: $0
time: 1hr
Sound: priceless 🙂
An externally hosted image should be here but it was not working when we last tested it.
TPA3116 Vacu-Phonic
This one's centered around the TPA3116 Class-D module powered by a 19vdc laptop brick - Twisting the small center vacuum tube controls volume - The larger KT66 tubes are for show, of course (a recycling move since all are failed) - Four LEDs are attached to the base of each, and a controller enables several varying flashing sequences (or else on w/o flash). The short copper pipe stubs surrounding the "chassis" add to the light emitting effect as well. Fun to watch and even nicer to hear - The TPA3116 is one impressive little amplifier... Ya gotta just love Class D (I also use a few Tripath and Hypex oriented designs, one being an actual tube hybrid).
This one's centered around the TPA3116 Class-D module powered by a 19vdc laptop brick - Twisting the small center vacuum tube controls volume - The larger KT66 tubes are for show, of course (a recycling move since all are failed) - Four LEDs are attached to the base of each, and a controller enables several varying flashing sequences (or else on w/o flash). The short copper pipe stubs surrounding the "chassis" add to the light emitting effect as well. Fun to watch and even nicer to hear - The TPA3116 is one impressive little amplifier... Ya gotta just love Class D (I also use a few Tripath and Hypex oriented designs, one being an actual tube hybrid).
Attachments
Yes, Have some more Caps on the way, to double up, might be over kill but will give it a go, if no improvement I can use caps for next project, (a new pre-amp)....🙂🙂
Finally finished building my three-enclosure hypex setup.
Case is custom made (fancied making my own "logo" 🙂 ) and can accommodate 3x UCD180s, UcD400 or two nCore400. The idea is that I don't have to make any more holes.
It took some time in the planning, but very happy with the results.
Insides of the three-channel version:
Using Hypex's own SMPS1200 is great. The only challenge was splitting the power feed to three sets for each module. At first, I just had a connection box, but it was rather untidy and as space is rather tight, it was never going to look good.
I contacted JST (who make the connector), and they sent me free a sample of their cimping terminals used in that power connector so I was able to tidy it up somewhat. Now it looks neat and clean 🙂
The three-UcD400 model does get a little warm, but still perfectly "holdable" after hours of listening. The nCore version is obviously a lot cooler.
Case is custom made (fancied making my own "logo" 🙂 ) and can accommodate 3x UCD180s, UcD400 or two nCore400. The idea is that I don't have to make any more holes.
It took some time in the planning, but very happy with the results.
Insides of the three-channel version:
Using Hypex's own SMPS1200 is great. The only challenge was splitting the power feed to three sets for each module. At first, I just had a connection box, but it was rather untidy and as space is rather tight, it was never going to look good.
I contacted JST (who make the connector), and they sent me free a sample of their cimping terminals used in that power connector so I was able to tidy it up somewhat. Now it looks neat and clean 🙂
The three-UcD400 model does get a little warm, but still perfectly "holdable" after hours of listening. The nCore version is obviously a lot cooler.
Jesus, imagine the inrush current on those banks 😱
Would make more of a difference to improve the local decoupling on the amplifier PCBs.
Sure TDA7498 100WPC @ 6 Ohms Board connected to a 36VDC Regulated Power Supply, all inside a Hammond 12" x 10" x 3" enclosure. Hookup wire is 20AWG 300V that has been doubled up for some applications (ie. 120VAC and IC). PS has been mounted on 3/8" tall nylon spacers and board using pinball machine boards feet. A 2.2K Ohms resistor to power the 3V LED from the 36VDC output of the PS. Lighted Mini Rocker Switch, RCA and Speaker connectors from Parts-Express. Great sounding amp!
Shown without the top cover, also from Hammond.
Shown without the top cover, also from Hammond.
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Hi!
You are using the TPA'S 3116 for bi-amping or like two mono's (left and right channel)?
Thank You
It's dual mono, left and right. Hadn't thought about building a bi-amped TPA 3116, would be fun.
Something like here:
http://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-68.html#post3715550
or in a different way?
What kind of speakers do you use?
Thank you!