
Hammond PWDP13141 Hallicrafters HT-32/HT-37 Main Power Transformer
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224-955-1644Key Features
- Listed as main power transformer for Hallicrafters HT-32 Mark I (T4) and HT-37
- S1: 880-270-0-270-880 VAC @ 300 mA CCS (90 V tap per HT-32 entry, 140 V tap per HT-37 entry)
- S2: 6.3 VAC @ 11 A CCS
- S3 and S4: 5.0 VAC @ 3 A CCS each
- Primary: 117 VAC 60 Hz (HT-32 entry) or 0-75-117 VAC 60 Hz (HT-37 entry)
- EI-175 x 3 core, style 6; approx. 19 lb
The PWDP13141 is listed in the PWDAHL Series ordering table as the Hallicrafters HT-32 Mark I T4 main power transformer, and also as the Hallicrafters HT-37 main power transformer, described as the same as the HT-32 Mark I. The part page short description reads "ALPHA 87 POWER TRANS", so buyers should confirm the application against the ordering table before purchase.
For the HT-32 Mark I entry, the primary is 117 VAC 60 Hz and S1 is 880-270-90-0-270-880 VAC @ 300 mA CCS. For the HT-37 entry, the primary is 0-75-117 VAC 60 Hz and S1 is 880-270-140-0-270-880 VAC @ 300 mA CCS. Both entries list S2 6.3 VAC @ 11 A CCS, S3 5.0 VAC @ 3 A CCS and S4 5.0 VAC @ 3 A CCS.
The transformer uses an EI-175 x 3 core and is built in style 6 of the series style sheet. Approximate weight is 19 lb, and shipping weight is 19 lbs (8.62 kg). It is listed as REACH and RoHS compliant.
Both listed primaries are 60 Hz. The series notes caution buyers outside North America that 60 Hz-only parts are not specified for 50 Hz. Units are usually built to order one at a time, so confirm availability of the PWDP13141 by phone or e-mail.
Ideal For
- Hallicrafters HT-32 Mark I transmitter restoration
- Hallicrafters HT-37 transmitter repair
- Vintage SSB transmitter power supply rebuild
Overview
| Series | PWDAHL Series (Peter W Dahl Transformers) |
| Part Number | PWDP13141 |
| Series Tagline | Magnetics for Amateur Radio Products |
| Short Description | ALPHA 87 POWER TRANS |
| Ordering Table Description (HT-32) | HALLICRAFTERS HT-32 MARK I T4 MAIN POWER TRANSFORMER |
| Ordering Table Description (HT-37) | HALLICRAFTERS HT-37 POWER MAIN POWER TRANSFORMER - SAME AS HT-32 MARK 1 (ABOVE) |
Dimensions
| Approx. Weight | 19 lbs |
Electrical
| Secondary S2 | 6.3 VAC @ 11A CCS |
| Secondary S3 | 5.0 VAC @ 3A CCS |
| Secondary S4 | 5.0 VAC @ 3A CCS |
| Primary (HT-37 Entry) | 0-75-117 VAC 60 HZ |
| Secondary S1 (HT-37 Entry) | 880-270-140-0-270-880 VAC @ 300MA CCS |
| Primary (HT-32 Mark I Entry) | 117 VAC 60 HZ |
| Secondary S1 (HT-32 Mark I Entry) | 880-270-90-0-270-880 VAC @ 300MA CCS |
Identifiers
| UPC | 623980284279 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 19 lbs (8.62 kg) |
Construction & Finish
| Core | EI-175 X 3 |
| Style (Per Series Style Sheet) | 6 |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
Which Hallicrafters transmitters is the PWDP13141 listed for?▾
The ordering table lists it as the HT-32 Mark I T4 main power transformer and as the HT-37 main power transformer (same as HT-32 Mark I).
Why does the short description say Alpha 87?▾
The part page short description reads "ALPHA 87 POWER TRANS" while the ordering table lists Hallicrafters applications; confirm the application with the manufacturer before ordering.
What are the high-voltage winding ratings?▾
S1 is 880-270-90-0-270-880 VAC @ 300 mA CCS in the HT-32 entry and 880-270-140-0-270-880 VAC @ 300 mA CCS in the HT-37 entry.
What filament windings are included?▾
S2 6.3 VAC @ 11 A CCS, plus S3 and S4 at 5.0 VAC @ 3 A CCS each.
What does it weigh?▾
About 19 lb; shipping weight 19 lbs (8.62 kg).
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