Eros VDC

bucketofguts · 5183

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Offline bucketofguts

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Reply #30 on: February 03, 2025, 08:07:55 AM
Queen E says I need your OK to send back. Would you please fix my Eros.

Thank you,

Ben~


Offline bucketofguts

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Reply #31 on: February 03, 2025, 02:16:24 PM
I am going to send some pictures that might shed some light on the issue. It is damn hard to take pics of soldier joints. Still in the fight till it heads your way.
Cheers.

b~


Offline bucketofguts

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Reply #32 on: February 07, 2025, 03:26:35 PM
Going to order parts for the board C4S, and the second C4S. Really good pics prove to be harder than I thought w/ an Iphone. Still working.What parts for the other boards need replaced, worst case. I read your post of what you do when a EROS comes in fo repair many times. You refer to the front board. Please elaborate kind Sir.

Have a lovely weekend.

b~


Online Paul Birkeland

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Reply #33 on: February 07, 2025, 03:29:19 PM
Typically the front C4S board on Eros kits I repair tends to be full of cold solder joints, and proper operation is restored by reflowing the joints on that board and occasionally I'll get a stubborn 2N2222 that has failed due to whatever the funky solder joints were doing to the kit to produce the failures.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline bucketofguts

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Reply #34 on: February 08, 2025, 08:12:13 AM
Thank you again. I would like to see you in action. May a video?


Offline bucketofguts

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Reply #35 on: February 18, 2025, 06:44:31 AM
i found a 10.7 K ohm  1072f on C7. I also  transposed both  of the   WFL 103H 630V w? the WFL 303H 630 V.. What damaged could I have caused. All new parts on the way with a few MJE350 and 2N2222A's. I now own a NOS Hakko 808. My linux is not playing nice with icloud pics.Working on that.


Online Paul Birkeland

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Reply #36 on: February 19, 2025, 05:33:35 AM
What's C7? The switching of the capacitors will only influence the EQ.  You'd have to send me the whole kit as a repair when I have time if you want me to debug it. 

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline bucketofguts

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Reply #37 on: February 19, 2025, 05:51:55 AM
C7 Tube Socket PIN.


Online Paul Birkeland

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Reply #38 on: February 19, 2025, 09:10:53 AM
Yeah, that's not great, and will cause some potential issues.  It's probably a good idea to go over the rest of the resistor values to be sure they are all correct.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline bucketofguts

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Reply #39 on: February 20, 2025, 08:56:08 AM
Oh boy.........................

Thank you,

b~


Online Paul Birkeland

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Reply #40 on: February 20, 2025, 11:51:30 AM
I would also mention that if the 90.9 ohm resistor that goes to pin 6 on the EF86 socket, or the 90.9 ohm resistor that goes to pin 1 or pin 6 on the 6DJ8 socket gets swapped with something else of a much higher resistance value, then you will fight endlessly to get things to work, but the problem will be the swapped resistor. 

All of the 90.9 ohm resistors can be measured while the Eros is turned off and with the resistors soldered into the circuit.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline bucketofguts

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Reply #41 on: Yesterday at 03:10:16 PM
Thank you sir. Will do.. Have a great weekend!

b~


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