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heathkit

  1. K

    Heathkit AA-151 Cleanup

    So my dad and I were cleaning out his garage and came across his old Heathkit. He wants me to sell it but before I try to post it up anywhere I want to open it up and clean some of the dust and grime that has inevitably collected inside but seeming as I've never done this before, I was hoping to...
    • Kilgannon
    • Thread
    • cleaning heathkit restoration tube amp
    • Replies: 20
    • Forum: Tube Audio
  2. B

    Heathkit AA141 preamp 5 - 12AX7 version - anyone with experience

    I've had a Dynaco Pas 2 for a little while, and have been very happy with it. It has the tone controls out and a new rectifier and new caps and all the hoop-lah ... I use it with a Bob Latino ST70 and an original ST70. I just picked up a Heathkit AA141 and hope to emulate the mods/updates...
  3. J

    DYNA ST-70 Harmonic Distortion Testing using all 1960's Heathkit Tube Technology

    In this video I will demonstrate harmonic distortion testing of my Dynaco ST 70 amplifier using all Heathkit tube gear from the 50's and 60's. This demonstration will show the THD produced from this amplifier at 2KHZ using three different power inputs. The equipment used includes: Heathkit...
    • JRUBIN
    • Thread
    • dyna dynaco heathkit ig-72 ig72 im-12 im12 st-70 st70
    • Replies: 15
    • Forum: Tube Audio
  4. H713

    Heathkit AA-121- What happened to this thing?

    Just bought this thing with plans to restore it, and I was hoping for some advice as to how I should proceed. I have not tested this thing yet, as when I got it the selenium rectifier was still in place and the surgistor was burned out. Moreover someone had bypassed the fuse holder (uh oh...)...
    • H713
    • Thread
    • heathkit heathkit aa-121 heathkit aa-40 restoration tube amplifier
    • Replies: 2
    • Forum: DIY
  5. FireGuruMN

    Heathkit W5M too quiet

    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...
  6. J

    Heathkit Signal Tracer to Gibsonette hybrid Guitar Amp Conversion

    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...
    • JRUBIN
    • Thread
    • amplifier gibsonette heathkit signal tracer
    • Replies: 4
    • Forum: Tube Audio
  7. H713

    Heathkit AA-121 Restoration

    I just bought a Heathkit AA-121 on eBay for $200 shipped. The guy said that he "plugged it in, 15 seconds later saw smoke and turned it off". The pictures do not show tubes, but who knows if it had them when he tested it. I have an extra output transformer for this amp, so as long as both aren't...
    • H713
    • Thread
    • aa-121 aa-40 el34 heathkit smoke
    • Replies: 2
    • Forum: Tube Audio
  8. T

    Heathkit AR-15 refurb

    I am refurbing my Heathkit AR-15 that my brother and I built 48 years ago, and am trying to clean up the hiss coming from the preamps. I think that the transistors should be replaced, and it uses: phono preamp: MPS6520, 2N3859A control preamp: 2N3393, MPS6517 Any advice on which transistors to...
  9. J

    Repair and restoration of a Heathkit IM-12 Distortion analyzer

    New project kickoff!!! This one is the repair and restoration of Heathkit's Harmonic Distortion Meter Model IM-12 (or IM58) going through the usual idiosyncrasies of Heathkit as I move along on this adventure to see if such a device can stand up to the likes of an HP 331A in the end. I realize...
    • JRUBIN
    • Thread
    • antique distortion analyzer heathkit heathkit im-12 heathkit im-58 heathkit im12 heathkit im58 repair restore vintage
    • Replies: 5
    • Forum: Test Equipment
  10. S

    Heathkit Fan

    Hi all, I built a few Heathkit receivers, Two TVs, and other miscellaneous items when I was a kid. Always had a fascination with electronics and recently acquired a “new”, still in the box, 1970 Heathkit AR-29 receiver. It is the exact same model I built with my dad in 1970, which I...
  11. hrnoevil

    Heathkit AM/FM tuner AJ32 manual/schematic WANTED

    I m trying to restore a Heathkit AM/FM tube tuner model AJ-32 and looking for a manual or schematic. If you have one and willing to share please contact me. I am more than happy to pay you or make a donation to Audio Karma on your behalf. ***Thank you everyone, I have already purchased a copy*******
    • hrnoevil
    • Thread
    • aj-32 tube tuner heathkit manual schematic
    • Replies: 1
    • Forum: Tuners
  12. geiman

    W-5-M Replacement OT

    Got a W-5-M Heathkit in need of an output transformer. The original died and the old stock and used are nearly unobtainium at least at a reasonable price. I'm more concerned about function than originality. So, I'm looking for something that matches spec wise and will fit the chassis. Any...
    • geiman
    • Thread
    • heathkit output transformer w-5-m
    • Replies: 4
    • Forum: Tube Audio
  13. V

    Heathkit AA-100 gets new power amp board

    Guys, Last year I made a new circuit board to replace my broken factory board. I had some extra boards left over and several people asked to buy them. I threw together a parts package and made them into kits and sent them all out the door. End of story right? Wrong. After turning away a lot...
  14. K

    Tannoy Monitor Gold Heathkit ... help identify speaker and improve?

    Hi, My first post to the forum... A few years ago my uncle passed away and when we cleared out the home I took all the audio equipment. 2 stereo receivers (nothing great) and these speakers that mom said that he built from a Heathkit. Fast forward... I finally open up the speakers (screws on...
    • Kadoomboom
    • Thread
    • diy fix heathkit speakers tannoy monitor gold
    • Replies: 9
    • Forum: Speakers
  15. thorpej

    Heathkit PS-4 exhibits snarky behavior

    I picked up a Heathkit PS-4 (same circuit as IP-32) regulated power supply recently to serve as a secondary supply for the @kward Special I'm also putting together. It featured nearly-all original components (including Daystrom-branded GE 6L6GCs) and sort-of-worked; Voltage won't zero-out...
    • thorpej
    • Thread
    • 6l6 heathkit power supply regulated
    • Replies: 24
    • Forum: Tube Audio
  16. Stever521

    Looking for a good tube amp repair person in So. Cal Metro LA

    Hi all, I would like to know if anyone here has a recommendation for somebody to bring a Heathkit W-5M to a good working state. I found a great speaker guy in North Hollywood who did a beautiful job on the Janszen ZVS-2's, if anyone is interested he is at Gss Speaker repair in NoHo I can forward...
  17. tutor turtle

    Peerless 16039 output transformer needed for Heathkit W-5M

    I took a pair of these mono-blocks in for recapping/restoration. The good news is, I found out the incredible cult following these amplifiers have, which implies the customer is less likely balk at the bill. The bad news is after doing all the work of replacing the caps and resistors, one of the...
    • tutor turtle
    • Thread
    • heathkit peerless 16309 peerless 16458 w-5m w5m williamson
    • Replies: 12
    • Forum: Tube Audio
  18. thorpej

    Heathkit AA-100 iron with 6L6GC

    I recently nabbed a non-working Heathkit AA-100 for a good price... seller said "transformers guaranteed", and I just finished testing them and they're perfect. I'm thinking of building another variant of my Mullard 5-20 / Eico HF-89-inspired 6L6GC amp using the power and output transformers...
  19. tcdriver

    Heathkit Preamplifier Model WA-P2 - What is it worth?

    The Heathkit Preamplifier Model WA-P2 Dollars and Sense Thread I plan to start another thread regarding the performance, application and modification of the Heathkit WA-P2. I do not want that thread to get bumped to Dollars and Sense so, I am posting this value discussion here. The Heathkit...
  20. P

    Heathkit AR-15 with Speakers

    Hey. I am posting for the first time. I have a Heathkit AR-15, built it, with (2) Heathkit Speakers in a (2) home built speaker cabinets, 3/4" stained Birch Plywood (Heavy). The unit was working fine, then it needed some slight "hand tapping" when in the FM mode. From what I have been...
  21. thorpej

    Heathkit AA-151 restoration in-progress

    [Post was stuck in limbo during the outage...] I'm whipping the Heathkit AA-151 that I picked up a while ago back into shape. I finished the cap job last week had some time last night to fire it up and give it a quick listen / performance evaluation. What's been done so far: Tubes all...
    • thorpej
    • Thread
    • aa-151 el84 heathkit ultra-linear
    • Replies: 30
    • Forum: Tube Audio
  22. thorpej

    Grumble, mumble, broken solder tab on a phenolic wafer tube socket...

    I'm finally getting around to re-capping my Heathkit AA-151. While replacing the screen bypass caps on the 6AN8As, the solder tab for pin 7 on one of the sockets broke off. *GRR* I have a cache of Belton micalex sockets I could replace it with, but it of course will be a serious PITA that I'd...
    • thorpej
    • Thread
    • aa-151 heathkit repair socket
    • Replies: 21
    • Forum: Tube Audio
  23. riveraXVX

    found my first tube gear....now where to go?

    greetings everyone! been a while since I've posted on the forums - wife and I just bought our first home together back in December and been busy getting settled in.... I am a complete amateur when it comes to tube audio gear. (I just barely know my way around solid state as it is) I'm...
    • riveraXVX
    • Thread
    • aa-100 aj-41 heathkit tube tube amplifier tuners
    • Replies: 12
    • Forum: Tube Audio
  24. s-petersen

    Heathkit IM-48(IM12,HD-1) IM-58 (AA-1 IM-22 ) troubles

    Hi Guys and Gals, I have a Heathkit AA-1 audio analyzer and a IM-58 harmonic distortion meter. They both have issues.They didn't work when I bought them. I am working on the IM-58 currently. So far I have found several bad solder joints,and a few incorrect resistors. I have been able to...
    • s-petersen
    • Thread
    • aa-1 hd-1 heathkit im-12 im-22 im-48 im-58
    • Replies: 6
    • Forum: DIY
  25. HansyPants

    Unbuilt, Unopened Heathkit Value?

    I'm a long time lurker but first time poster. I am not sure if this is the right place to post this but there is a Heathkit AR-1219 Receiver, a Heathkit AA-1219, and a matching Heathkit AJ-1219 AM/FM tuner in question. The AA-1219 and AJ-1219 have the original packing tape still in tact but...
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