Great work. I ended up with 13 Power Designs supplies. I was going to start fooling around with them in August. Your effort here helps me immeasurably.
So, if this is 4010, then is it twice as good as 2005? Hell, it's twice the voltage and twice the current. Quad Damage! :) Looking at the panel, it reminds me of Nagra recorders. Every single detail here is fantastic. This PSU is absolutely freakin' BEAUTIFUL on the outside, a bit chaotic inside. Made with good quality components, maybe save for electrolytic caps (I don't trust them), obviously very high end gear. Down to a millivolt, soooo damn nice! I've never heard of oven stabilization in PSUs. And no PCB, all turret board like those old vacuum tube guitar amps, haha! A joy for ever. I like your oven replacement mod, keeping the PSU fresh and going :)
I bought new 1N823 Zeners with a similar voltage: www.mouser.com/ProductDetail/494-1N823. I thought they were the same ones because the part number is very similar. However, I think the voltage is slightly off, which is why the whole thing has a slight voltage offset that the adjustment can't fully get rid of. Honestly I think I might have lost the old oven. Thought I saved it but can't find it now.
I was was thinking about simulating the oven circuits with available Zener diodes. I was able to take my oven apart. The bracket that held the thermostat in contact with the internal chamber was broken. I think the chamber got way to hot burning up all the clay coated wire wound resistors. One of my Zener diodes is bad. I will have to un-wind the heater element to weld the bracket back together. But I think I can fix it!
@@barrybreaux5303 That's impressive, I did not have the stomach for all that work! But I hope it comes together. Retaining the original oven is definitely the only way to achieve the original performance.
@@barrybreaux5303 I found my oven! If you want it, I can ship it to you. I'd list it on Ebay for .99c plus the shipping cost (like $4). I can continuity test the heater if that's the part you need.
Kind of an unusual piece of gear. I would be torn between restoring it to its proper function, with all the precision, and knowing that for the most part, there is almost no application that requires or even benefits from such precision.
Great work. I ended up with 13 Power Designs supplies. I was going to start fooling around with them in August.
Your effort here helps me immeasurably.
So, if this is 4010, then is it twice as good as 2005? Hell, it's twice the voltage and twice the current. Quad Damage! :)
Looking at the panel, it reminds me of Nagra recorders. Every single detail here is fantastic.
This PSU is absolutely freakin' BEAUTIFUL on the outside, a bit chaotic inside. Made with good quality components, maybe save for electrolytic caps (I don't trust them), obviously very high end gear. Down to a millivolt, soooo damn nice! I've never heard of oven stabilization in PSUs. And no PCB, all turret board like those old vacuum tube guitar amps, haha! A joy for ever.
I like your oven replacement mod, keeping the PSU fresh and going :)
Thanks! Really did not anticipate spending so much time on this thing, but the front panel is too beautiful to sell it as a parts unit.
Do you have your old oven? Where did you get the zener diodes? All the resistors in my oven were crumbling.
I bought new 1N823 Zeners with a similar voltage: www.mouser.com/ProductDetail/494-1N823. I thought they were the same ones because the part number is very similar. However, I think the voltage is slightly off, which is why the whole thing has a slight voltage offset that the adjustment can't fully get rid of.
Honestly I think I might have lost the old oven. Thought I saved it but can't find it now.
I was was thinking about simulating the oven circuits with available Zener diodes. I was able to take my oven apart. The bracket that held the thermostat in contact with the internal chamber was broken. I think the chamber got way to hot burning up all the clay coated wire wound resistors. One of my Zener diodes is bad.
I will have to un-wind the heater element to weld the bracket back together. But I think I can fix it!
@@barrybreaux5303 That's impressive, I did not have the stomach for all that work! But I hope it comes together. Retaining the original oven is definitely the only way to achieve the original performance.
Retired electrician engineer. I have to be challenged.
@@barrybreaux5303 I found my oven! If you want it, I can ship it to you. I'd list it on Ebay for .99c plus the shipping cost (like $4). I can continuity test the heater if that's the part you need.
Kind of an unusual piece of gear. I would be torn between restoring it to its proper function, with all the precision, and knowing that for the most part, there is almost no application that requires or even benefits from such precision.