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#1
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Question re Partridge transformers
Hi All..
Found a nice pair of Partridge Transformers during a Uni store cleanup. Code is D3861 Markings a 240v 210v 110v 0 40 -60 ~ 10 . 5V 2A Anyone have an idea what they would be suitable for? |
#2
Posted to rec.audio.tubes
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Question re Partridge transformers
33-45 wrote: Hi All.. Found a nice pair of Partridge Transformers during a Uni store cleanup. Code is D3861 Markings a 240v 210v 110v 0 Definitely primary. 40 -60 ~ 40 - 60 Hz 10 . 5V 2A Secondary winding. Unless you need 10.5V, not a lot of use I'd say. Graham |
#3
Posted to rec.audio.tubes
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Question re Partridge transformers
33-45 wrote: Hi All.. Found a nice pair of Partridge Transformers during a Uni store cleanup. Code is D3861 Markings a 240v 210v 110v 0 40 -60 ~ 10 . 5V 2A Anyone have an idea what they would be suitable for? They could be used for a filament supply for a preamp. 10.5V when rectified with an Si bridge will give about +13vdc at 1.5Adc, and this can be filterd with a CLC for 12.6Vdc, say 15,000uF plus low resistance 20mH choke plus 15,000uF, or the 13.5Vdc used with RC filtering down to 6.3Vdc. Patrick Turner. |
#4
Posted to rec.audio.tubes
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Question re Partridge transformers
Eeyore wrote: 33-45 wrote: Hi All.. Found a nice pair of Partridge Transformers during a Uni store cleanup. Code is D3861 Markings a 240v 210v 110v 0 Definitely primary. 40 -60 ~ 40 - 60 Hz 10 . 5V 2A Secondary winding. Unless you need 10.5V, not a lot of use I'd say. Still usable though even if you wanted 6.3Vac at 2A, with a 2 ohm x 20W dropping resistor. Patrick Turner. Graham |
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