18watt OT hook up help

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Toobs
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18watt OT hook up help

Post by Toobs »

hi dudes.... it's been a while since i built an amp, and have a OT question. On the primary side, two leads go to the plates. Where does the 3rd lead go...32/32 filter cap? Thanks!
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crgfrench
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Re: 18watt OT hook up help

Post by crgfrench »

My Heyboer OT has brown and blue primary wires that go to the plates and a red center tap primary that goes to the junction of the first filter cap and the first voltage dropping resistor on the B+ line (the 2 watt 1.5k resistor -- could be 2.2k also or thereabouts).
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JMPGuitars
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Re: 18watt OT hook up help

Post by JMPGuitars »

Toobs wrote:
Thu 05/30/19 8:45 pm
hi dudes.... it's been a while since i built an amp, and have a OT question. On the primary side, two leads go to the plates. Where does the 3rd lead go...32/32 filter cap? Thanks!
Look at this layout here: files/JMPGuitars_18_Watt_Lite_2b_Layout.pdf

Thanks,
Josh
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Toobs
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Re: 18watt OT hook up help

Post by Toobs »

Wow....that's a beautiful layout, JMP. And, in color! -lol Much easier for my old eyes to see! LOL Much appreciated!
Thank you both for responding. Rock on--
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