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Audio and Video Talk
Valves / Vacuum Tubes
Locally available Audio Output Transformers
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<blockquote data-quote="Mars" data-source="post: 860840" data-attributes="member: 817"><p>Hi All </p><p></p><p>I have regular requests from people looking for parts for their DIY tube amp projects. Output transformers seems to the hardest to find at a decent price. While scanning the web, I found this item at RS</p><p></p><p> 5.6kΩ: 4 Ω/8 Ω/16 Ω, 25W Output Transformer for EL34</p><p></p><p> RS stock no. 123-7237 Mfr. Part No. V78A01F Manufacturer OEP </p><p></p><p><img src="https://media.rs-online.com/t_large/R1237237-01.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The specs are as follows:</p><p></p><p> V78A01F 25W valve output transformers are constructed with a grain orientated steel core. The core construction reduces distortion and reduces the stray magnetic field. Featuring 24.5% UL taps on the primary output these push-pull transformers have outputs for 4 Ω, 8 Ω and 16 Ω. V78A01F push pull transformers are suitable for use with amplifiers with EL34 valves.</p><p></p><p>UL94-HB (minimum)</p><p>Temperature class B (+130?C) minimum</p><p>19 H total primary inductance at 1 kHz</p><p>85.7 mH total secondary inductance at 1 kHz</p><p>Isolation of primary to secondary is 1 kVrms for 2 seconds </p><p></p><p>Do you know of any similar products available in SA?</p></blockquote><p></p>
[QUOTE="Mars, post: 860840, member: 817"] Hi All I have regular requests from people looking for parts for their DIY tube amp projects. Output transformers seems to the hardest to find at a decent price. While scanning the web, I found this item at RS 5.6kΩ: 4 Ω/8 Ω/16 Ω, 25W Output Transformer for EL34 RS stock no. 123-7237 Mfr. Part No. V78A01F Manufacturer OEP [IMG]https://media.rs-online.com/t_large/R1237237-01.jpg[/IMG] The specs are as follows: V78A01F 25W valve output transformers are constructed with a grain orientated steel core. The core construction reduces distortion and reduces the stray magnetic field. Featuring 24.5% UL taps on the primary output these push-pull transformers have outputs for 4 Ω, 8 Ω and 16 Ω. V78A01F push pull transformers are suitable for use with amplifiers with EL34 valves. UL94-HB (minimum) Temperature class B (+130?C) minimum 19 H total primary inductance at 1 kHz 85.7 mH total secondary inductance at 1 kHz Isolation of primary to secondary is 1 kVrms for 2 seconds Do you know of any similar products available in SA? [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Locally available Audio Output Transformers
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