Where to have a transformer re-wound?

Discussion in '"Boat Anchor" & Classic Equipment' started by KG4RLL, Jan 4, 2021.

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  1. KG4RLL

    KG4RLL Ham Member QRZ Page

    I have a Heathkit HA-10 Warrior amp that the power transformer HV winding has shorted.
    Would like to find someone to rewind the transformer.
    Any suggestions on someone that can do this sort of work?
    Thanks,
    Scott
     
  2. K6BSU

    K6BSU Ham Member QRZ Page

    I don't think any transformer shop would do that except to charge by the hour. Let's see 4 hours at $60/hour....tha'ts....that's..well, a lot.
     
  3. W1BR

    W1BR Premium Subscriber QRZ Page

    Dahl made a replacement, but it was over 300 dollars. Hammond is taking over the Dahl line. Heyboer might do a rewind or replacement.
     
  4. AF7XT

    AF7XT Ham Member QRZ Page

    ================================================================
    HEATH HA-10 WARRIOR PLATE
    TO PRODUCE 1500 VDC @ 0.5A CCS FWCT
    CORE) EI-175 X 4" 29GM6RTM STYLE #) 06 E-I LAMINATED CORE

    PR) 115/230 VAC 60 HZ 1 PH

    S1) 3400 VCT @ 0.5A CCS (FWCT)

    DM) HT = 5.250 WT = 5.250 DT = 4.375 MD = 3.500 MW = 4.375
    PRICE) $335.00 Plus S&H FOB Buffalo, NY WEIGHT) 25 LBS
    ================================================================
    HEATH HA-10 WARRIOR PLATE SP
    SPECIAL FOR FWCT CAPACITOR INPUT
    CORE) EI-175 X 4" 29GM6X STYLE #) 06 E-I LAMINATED CORE

    PR) 115/230 VAC 60 HZ 1 PH

    S1) 2500 VCT @ 0.7A CCS (FWCT)

    DM) HT = 5.250 WT = 5.250 DT = 4.375 MD = 3.500 MW = 4.375
    PRICE) $335.00 Plus S&H FOB Buffalo, NY WEIGHT) 25 LBS
    ================================================================
     
  5. KI4ZNV

    KI4ZNV Ham Member QRZ Page

    That's a fair price for the work. You can rewind it yourself by hand on the bench but you'll see why they charge that much.
     
    W1BR likes this.
  6. W9GB

    W9GB Ham Member QRZ Page

    Heyboer Transformers has been designing and building the highest quality transformers for electronics industry since 1958.

    It is a small shop (~10 employees).
    Alden Arendsen is owner / sales engineer at Heyboer.
    I have been happy with their work on my restoration projects,
    over the past 20+ years.

    ==
    6E3E47C6-C5D7-4CE1-AA77-F7CE7B77CD30.gif
    Heyboer Transformers
    17382 Hayes St.
    Grand Haven, Michigan 49417
    https://www.heyboertransformers.com/
    Phone: +1 (616) 842-5830
    Fax: +1 (616) 842-3731
    ===
    BlueGlow Electronics of Mocksville, North Carolina, owned by Mark Walker, KG4FDR purchased the Transformer Rewinding Service (TRS) formerly operated by Gary Brown, WZ1M (Orene, Maine). After purchased the TRS business, he had a heart attack and travel for his day job travel increased. The combination means he stopped repair work and will not be rewinding transformers until retirement (~2024).
    https://blueglowelectronics.wordpress.com/transformer-rewinding/
     
    Last edited: Jan 5, 2021
    PU2OZT likes this.
  7. G3YRO

    G3YRO Ham Member QRZ Page

    Even 20 years ago there were very few places that re-wound transformers . . .

    So when the Mains Transformer went on my Drake R4A, I eventually found a local place that made Transformers . . . I rang up to see if they could help, and the boss said to bring my Transformer in.

    When I got there, I realised it was a factory (full of mainly women) that just made what you Americans call Wall Wart power supplies, for various British companies. (these were still proper Transformer types, not switch mode)

    However, the boss was clearly very bored, and took this on as a project. He said the transformer was so badly melted that he would just make a new one, the same size and spec. He asked me what voltage and expected current the various windings had.

    He somehow got hold of Imperial Size laminations, as they have been Metric here in Britain for a while . . . and he made a superb transformer, and bolted on the original metal covers both sides, which he had re-sprayed.

    I can't imaine how many hours he must have spent on this job . . . but he only charged me £40 ! (and yes, the transformer worked perfectly)

    Sadly I imagine he has long since retired . . .

    Roger G3YRO
     
    N3RYB, KE5OFJ, W1BR and 1 other person like this.
  8. KJ4YEV

    KJ4YEV Premium Subscriber QRZ Page

    I second the Heyboer suggestion. They rewound some guitar amp transformers for me.
     
  9. W2VW

    W2VW XML Subscriber QRZ Page

    Keep the transformer and power supply choke for wheel chocks.

    Find a later low resistance secondary transformer which will deliver desires plate voltage using a voltage doubler circuit.

    Better performance from less heft.

    Old ssb amplifiers built like AM transmitters are mostly turkeys.
     

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