amplifier

Hello. I' just got this component, and I'm not sure if it's a radio, a preamp, or and amplifier. No brand name or model. Can someone identify it please? Thanks in advance for your replies.

Transitioning from some of the best amplifiers to come out of the 70's, I ran across this little gem. I've had it stored for about a month in my closet after I scored it in a package deal. I hooked this tiny power amplifier up to my daily drivers - the Canton Ergo 70's - and my jaw immediately...

Hey all! I've been a happy user of a pair of L-07M monoblocks for the past couple of years. I've had them completely restored and I'm in love with the sound; Honestly better than any other amplifier I have heard, no matter the price. I recently bought a pair of Mk2's on eBay because of a tip...

Or at least, an important part of "The Sound of Young America"... It's one of those things that if you were purposefully searching for it, you wouldn't find it in a million years. At least I wouldn't have. Though I have to add, what makes it even more serendipitous is that I (and probably most...

So I am extremely new to building tube amplifiers. I've never done this before, but this concept intrigued me alot, therefore I decided to build one. I followed a schematic of a 20W pc tube amplifer. To my knowledge, and to checking my work multiple times, I have followed the schematic...

Hello everyone! I recently picked up this amplifier to give it a go to repair it. I used to play around with audio equipment and I figured this would be a good return! I am certainly not an expert but hopefully I'll learn a thing or two on the way. Anyways, the amplifier turns on but it starts...

I read with interest this thread - http://audiokarma.org/forums/index.php?threads/solution-for-2270-high-bias-early-serial-number.770102/page-2#post-10572328 And I liked it well enough to go back to my two boards and redo the two transistors I had just soldered in last night :) But I made a...

I found an old amp at a thrift store in McKenzie, TN that came with two microphone mixers and a feedback controller. When I pulled the amp off the rack, the two capacitors inside had burst. They were the exact same, so I only pictured one. There's a TI-84+ for reference, but I don't remember the...

First, I want to make it clear that I have not heard, do not own, nor am I considering a purchase of this amp because I simply have no need for it. However, it looks like it could be a winner, and I failed to find any threads about it. So if you show me one (or five) such threads, then, well...

I have a Proton D1200 amp and every once in a while when I power it up and play something, the left channel is at a much lower volume and the sound is distorted ... if I turn the volume all the way down, the left VU meter will not bottom out, instead it'll read around 0.01 but no sound is heard...

Hi, I'm currently working on a Fisher X-101-C. The 7591A were all done. It's recaped and I haven't checked posts about improvements . I wanted to know what modern type of 7591A would work best considering the voltages. I also read somewhere that fixed bias models should have the 330K grid leak...

Good day folks. I'm new here so hopefully I'm doing everything right and can get some help with this amp I'm trying to fix. I like to give plenty of details, so please bare with my long messages, since there's a lot to discuss. So: it's a Technics SU-V550 - fairly old stuff - but the price was...

I have to take the hood off every amp.Thought yall would wanna see.All i could afford right now.Its discrete design with a toroid xformer.Someone may know,are the output transistofs Toshiba? Also if someone has the schematic and service manual can you email it to me? I took photos under the hood.

vintage amplifier silver front

Almost since the beginning of my time on this forum I've heard derogatory comments about the 1060B amplifier. Build quality is terrible, sound is terrible, nothing like the original 1060, etc. So of course I had to find out for myself. :D This one came to me in great cosmetic shape and...

These 2 blasts from the past showed up on my local cl What would you choose. Both looks 100%. H/K twice the dollar. dbx BX3 or Harman/Kardon Citation 16

Oh no another W5M restoration! I had a pair sitting on the bench with a whole pile of expensive tubes and replacements parts sitting next to them for about a year of so. I thought it would be wise to learn how tube amplification works before tearing into these amps. I was originally thinking...

In this video I take my cosmetically damaged but fully functional Model T4 signal tracer and convert it into a guitar amplifier using inspiration from a Gibson model GA-8T schematic to produce a hybrid amplifier. The project starts off with planning and possibilities and then jumps into the...

Hello all, I just picked up a beautiful looking 510m and 3600 at a garage sale. It's a single-owner unit and appears to be in near perfect condition. There is no distortion, the fan runs, and all lights and meters work perfectly However, the right channel is about 40% quieter than the Left...

Trying out a new Crown XLi 2500 amplifier for my JBL 250Tis and I am very impressed with it's sound quality. I expected it to control the speakers well and it does with the bass lines more prominent and controlled. But I was hoping that it would be very revealing as well and it is, which I did...

Hi ,can I use acurus a200x3. As regular stereo using only two channels?thanks.paolo best regards to all.

Vague question, I know. Are there any threads out there indicating how to determine what to replace, what to replace it with, and how to replace it? I'm completely new to circuitry stuff, so approach as if I know nothing, which is pretty accurate. I'm trying to update a Nikko Alpha 1 and Beta 1...

I have a JVC JA-S77 integrated amp that sounds wonderful except for a few issues. When I have no music playing, I turn up the volume to see if there is any static or noise of any kind coming from any of the input channels. Dead silent on the Tuner and AUX channels, but Phono 1 is noisy and Phono...

Hey guys. I got a gorgeous mc225. All original working but the lettering is toast. I can't find a source for a nice chasis to swap. Do any of you out there have vector files of the lettering or know someone who can help or have any good advice for me?

Have thought about using tube guards in a build but always wondered how you would switched the tubes out? Would you have to flip the amp and remove the nut then pull the guard off, swap tubes and put guard back on? Or is there enough room to get a grip on the tube and wiggle it out of the socket?