Hammond PWDM13203 Collins 30K Modulation Transformer, 200W
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224-955-1644Key Features
- Modulation transformer for the Collins 30K (P/N 677-0316-00)
- 200W, +/- 2dB from 100-5000 Hz
- Primary 2450 VCT at 175 mA, 32K ohms
- S1 1770 VAC at .150A DC and .113A AC, 16.7K ohms
- S2 248 VAC at .050A DC
- EI-150 x 2.5" 29GM6X core, Style 7, approx. 12 lbs
- REACH and RoHS compliant
The PWDM13203 is a modulation transformer for the Collins 30K transmitter, cross-referenced to Collins P/N 677-0316-00. It is intended for collectors and restorers of the 30K who need a replacement for the original modulation transformer. Quoting the Collins part number when ordering helps match it to the original unit in your 30K.
It is rated 200W with a response of +/- 2dB from 100-5000 Hz. The primary is 2450 VCT at 175 mA, 32K ohms. There are two secondaries: S1 is 1770 VAC at .150A DC and .113A AC, 16.7K ohms, and S2 is 248 VAC at .050A DC.
PWDM13203 uses an EI-150 x 2.5" 29GM6X lamination core in Style 7 of the series style sheet. The approximate weight is 12 lbs, with a shipping weight of 12 lbs (5.44 kg). It is REACH compliant and RoHS compliant, and is identified by UPC 623980436449 and UNSPSC 39121301.
This design comes from the Peter W. Dahl files that make up the PWDAHL Series. The series notes that these transformers are usually built to order one at a time and recommends confirming availability by phone or e-mail. Stock units can usually be shipped next business day.
Ideal For
- Collins 30K transmitter restoration
- Modulation transformer replacement
- Vintage Collins AM station repair
Overview
| Series | Peter W Dahl Transformers (PWDAHL Series) |
| Part Number | PWDM13203 |
| Product Type | Modulation Transformer |
| Series Focus | Magnetics for Amateur Radio Products |
| Short Description | COLLINS 30K MODULATION XFMR |
| Original Part Reference | Collins P/N 677-0316-00 |
| Ordering Table Description | COLLINS 30K MODULATION XFMR P/N 677-0316-00, 200W,+/- 2DB 100-5000HZ |
Electrical
| Primary | 2450 VCT @ 175 MA (32K OHMS) |
| Secondary | S1) 1770 VAC @ .150ADC & .113AAC(16.7K OHM) S2) 248 VAC @ .050ADC |
| Power Rating | 200W |
| Frequency Response | +/- 2dB 100-5000 Hz |
Identifiers
| UPC | 623980436449 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 12 lbs (5.44 kg) |
| Approx. Weight (Ordering Table) | 12 lbs |
Construction & Finish
| Core | EI-150 X 2.5" 29GM6X |
| Style (Per Series Style Sheet) | 7 |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What Collins part number does PWDM13203 replace?▾
Collins P/N 677-0316-00, the Collins 30K modulation transformer.
What is its power and frequency rating?▾
200W, +/- 2dB from 100-5000 Hz.
What are the winding ratings?▾
Primary 2450 VCT at 175 mA (32K ohms); S1 1770 VAC at .150A DC and .113A AC (16.7K ohms); S2 248 VAC at .050A DC.
How heavy is it?▾
About 12 lbs (5.44 kg).
Is this transformer kept in stock?▾
The series notes that these transformers are usually built to order one at a time, and that stock units can usually be shipped next business day. Confirming availability by phone or e-mail is recommended.
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