Hammond PWDP13149 Collins 30S-1 Screen Power Transformer, 350 VAC
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224-955-1644Key Features
- Screen power transformer for the Collins 30S-1
- Secondary: 350/250 VAC @ 400 mA CCS
- Primary: 115 VAC, 60 Hz, single phase with HI-LO taps
- All leads 12.0 in. long out minimum
- EI-175 x 1.75 core, style 4; approx. 12 lb
- Dimensioned drawing: A 4.375 in., C 5.250 in., F 4.000 in.
The PWDP13149 is the screen power transformer for the Collins 30S-1 linear amplifier, built from the Peter W. Dahl design files. It supplies the screen voltage winding and is aimed at Collins 30S-1 owners and restorers.
The primary is 115 VAC, 60 Hz, single phase with HI-LO taps: the drawing shows LO on black lead (3), HI on black lead (2) and 0V on black lead (1). The secondary is listed as 350 VAC @ 400 mA CCS in the ordering table, and the description and drawing give it as 350/250 VAC @ 400 mA CCS on red leads (10) and (11). All leads are 12.0 in. long out minimum.
The unit uses an EI-175 x 1.75 core in style 4 of the series style sheet. Drawing dimensions are A 4.375 in. ±0.063, B 4.450 in. ±0.125, C 5.250 in. ±0.063, D 3.500 in. ±0.063, E 2.875 in. ±0.063, F 4.000 in. ±0.063 and G 0.281 x 0.563 in. ±0.015. Approximate weight is 12 lb (shipping weight 12 lbs / 5.44 kg).
The PWDP13149 is listed as REACH and RoHS compliant. Its primary is specified for 60 Hz; buyers on 50 Hz supplies should heed the series note. Series units are usually built to order, so confirm availability before ordering.
Ideal For
- Collins 30S-1 amplifier screen supply repair
- Collins 30S-1 restoration
- Collins 30S-1 screen supply rebuild on 115 VAC 60 Hz
Overview
| Series | PWDAHL Series (Peter W Dahl Transformers) |
| Part Number | PWDP13149 |
| Drawing Title | POWER TRANSFORMER |
| Series Tagline | Magnetics for Amateur Radio Products |
| Short Description | COLLINS 30S-1 SCREEN POWER |
| Ordering Table Description | COLLINS 30S-1 SCREEN POWER 350/250 VAC @ 400 MA CCS |
Dimensions
| Dimension A | 4.375" ±0.063 |
| Dimension B | 4.450" ±0.125 |
| Dimension C | 5.250" ±0.063 |
| Dimension D | 3.500" ±0.063 |
| Dimension E | 2.875" ±0.063 |
| Dimension F | 4.000" ±0.063 |
| Dimension G | 0.281" X 0.563" ±0.015 |
| Approx. Weight | 12 lbs |
Electrical
| Primary | 115 VAC 60 HZ 1PH HI-LO TAPS |
| Secondary S1 | 350 VAC @ 400 MA CCS |
| Primary Leads (Drawing) | LO - BLK (3); HI - BLK (2); 0V - BLK (1); 115V, 60Hz |
| Secondary Leads (Drawing) | RED (10), RED (11) |
| Secondary Rating (Description/drawing) | 350/250 VAC @ 400 mA CCS |
Identifiers
| UPC | 623980474595 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 12 lbs (5.44 kg) |
Construction & Finish
| Core | EI-175 X 1.75 |
| Lead Length | All leads 12.0" long out min. |
| Style (Per Series Style Sheet) | 4 |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What does the PWDP13149 power in the Collins 30S-1?▾
It is listed as the Collins 30S-1 screen power transformer.
What is the secondary rating?▾
350/250 VAC @ 400 mA CCS per the description and drawing; the ordering table lists S1 as 350 VAC @ 400 mA CCS.
How is the primary tapped?▾
115 VAC 60 Hz single phase with HI-LO taps: LO black (3), HI black (2), 0V black (1).
What are the overall dimensions?▾
The drawing lists A 4.375 in., B 4.450 in., C 5.250 in., D 3.500 in., E 2.875 in., F 4.000 in. and G 0.281 x 0.563 in., with stated tolerances.
How long are the leads?▾
All leads are 12.0 in. long out minimum.
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