6550 OT Primary Z Question

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Colossal
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Location: Moving through Kashmir

Re: 6550 OT Primary Z Question

Post by Colossal »

didit wrote: ↑Mon Nov 07, 2022 4:48 pm
Colossal wrote: ↑Mon Nov 07, 2022 12:06 pm I used a Heyboer built A-451 for a 4x6550 bass amp running in UL. Sounded fantastic. The OT weighs 12kg!
QED ..
PT on the left, 10H 700mA choke in the middle, and A-451 2k2 U/L on the right/rear

Bass Amp.png
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Bombacaototal
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Joined: Thu Oct 06, 2016 5:53 am

Re: 6550 OT Primary Z Question

Post by Bombacaototal »

Many thanks all for the inputs, links and suggestions. Great reading material and food for thought. I sent a note to heyboer about their OT.

Also I have been speaking to Hammond about their sunn PT, and for future reference they did a transformer based on someone's spec request and never had access to the real thing. So not a true clone! Also hence why they do not offer the OT
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