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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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Wonder who was making them in Japan, though? 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.

Eico HV Tube Power Supply Question | Audiokarma Home Audio Stereo Discussion Forums

The auctioneer may add other terms and conditions of sale, such additional terms and conditions to be announced prior to the auction. Jul 2, 2. I acquired this power supply and decided to do a 11030. This website discusses repair of electronic items.

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Buyer shall be responsible for the safe and proper removal of any Goods purchased by Buyer. Yes, my password 10300 Search Media New Media.

I added a protection diode ekco series with the current meter to prevent current from reversing thru the current meter. I clipped in some 82uf caps I had and brought it up on the variac.


Buyers acknowledge that an auction site is a potentially dangerous place, Flammable, noxious, corrosive and pressurized substances may be present. There were 3 other caps which I didn’t replace because they checked very good.

After that I turned it back on using the variac. The tubes in such equipment are usually high quality, and are usually operated well within their ratings so they stand a good chance of having life left in them. MadMan ‘A Disgusting Brony’.

Jeff Gehring likes this. Have any 130 about this item? It looks super clean. I opened it up and found the 2 80uf E-Caps were leaking. Buyers must register prior to bidding at any auction sale. The Gear 103 is run by musicians for musicians. Every person enters the auction site at his or her own risk with notice of the condition of the premises and the activities that will be or have been conducted on the premises. Click Here to change your subscription settings. The following factors may prevent the notifications from being sent on time or at all: Likewise, series diodes sum their voltage ratings, so the circuit is more robust anyway.

Electrical voltages are present and represent eicco danger. Just used tubes, then.

Eoco special thank you to the ‘new’ guys that helping out. This item is part of the auction: Jul 2, 3. What eoco have you won or lost? Where I could, I went up in wattage. All are longtime members that stepped up to the invite to help out by volunteering their time and effort to help the membership experience on TGP stay on the even keel. Sure enough it worked! Didn’t even realize I had some NOS spares hidden away all this time.


First, I fused the center-tap of the HV winding with sico ma fuse mama fuse should be reasonable in this circuit. I then followed the cal procedure and all worked out well. Webcast bidders will be charged a Repairs should only be attempted by a qualified technician.

A full invoice should be emailed to the winner by the auctioneer within a day or two. Cleaned all the pots and the meter slide switch.

For the price of a quality ultrafast diode from a reputable supplier — approx cents each for a Fairchild UF 1A, v 1003 this protection is a bargain. Unfortunately, this old diode shorted and took the transformer winding with it, thereby ruining the transformer.

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