I just got a Eico regulated power supply but without the schematic or any doc. The C- and the VAC all work fine, but the high voltage. Was cleaning in the basement a bit this afternoon, and stumbled across the schematic for this old Eico power supply on my work bench that’s. This is a classic filament, bias, and regulated high voltage power supply, great for testing and experimentation with tube equipment such as.

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Everything else looked good. Certain items offered for sale at the auction may constitute “Restricted Technology. Electrical voltages are present and represent a danger.

Radios For Sale

All buyers shall rely solely on their own investigation and inspection of any Goods. Goods weighing more than pounds must be removed by a qualified, insured rigger. One of the cheapest circuit insurance you can buy is to place diodes in series. A special thank you to the ‘new’ guys eicp helping out. Repairs should only be attempted by a qualified technician. Did you win this item?

The volt meter is very accurate when compared to my DVM! In this power supply, though, I did leave a 40ma PTC in the screen supply, which helped to mitigate inrush current and possibly added some transformer protection. Welcome to the New Lot Closing Notification Feature Subscribing to the Lot Closing Notification for an item will trigger our system to notify you about minutes before the bidding closes.


Browse All Upcoming Auctions A full invoice should be emailed to the winner by the auctioneer within a day or two. After that 0130 turned it back on using the variac.

Eico 1030 HV Regulated Power Supply

They checked right on the money. Heavy equipment may be operated and electrical circuits may be live. Very spiffy job on the recap.

Want to receive updates about upcoming auctions? In addition to stacking the diodes, I installed fuses for each secondary winding. No returns or refunds will be permitted, unless authorized by the seller in writing. Was cleaning in the basement a bit this afternoon, and stumbled across the schematic for this old Eico power supply on my work bench that’s been gathering dust for the past decade or so. Without limiting the generality of the foregoing, Buyer shall restore and repair all real and personal property that is altered or damaged as a result of Buyer’s removal of the Goods.

I fused the screen winding with a 62ma slo-blo fuse, which was the smallest that I had available. Wonder who was making them in Japan, though? Yes, my password is: Your name or email address: No, create an account now. Getting notified via SMS Text Message will require you to verify your cell phone via the profile page in your account. Jul 1, 1. Likewise, series diodes sum their voltage ratings, so the circuit is more robust anyway.

Share This Page Tweet. All times are GMT We will send you a notification when the item bidding is about to end. Many diodes will pass a DMM diode test but are, in fact, shorted when operated at the high voltages seen in the circuit. First, I fused the center-tap of the HV winding with a ma fuse mama fuse should be reasonable in this circuit.


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The applied voltage is much too low to indicate whether the diode is shorted. Do you already have an account?

Not only that, but you can put current mfg tubes back in the equipment and still use it. Likewise, I used two UF in series in the screen supply, which was the winding that failed in my old power supply.

Jeff Gehring likes this. Jul 2, 3. No Info Available Payment Details: Search Media New Eco. I acquired this power supply and decided to do a restoration.