Isco 494

ethermion · 23rd June 2006, 01:53 PM

Isco rocks! I just got some documentation from the company, and I'm sharing for the rest of y'all who have one too.

http://www.eisenhower.org/eric/isco/494.pdf

Operations
Theory
Schematics
Layout
Troubleshooting
Tips on replacement parts, w/ Newark numbers!

Enjoy!

EC8010 · 23rd June 2006, 01:59 PM

10/10 for Isco in providing useful information. Now all I need is the power supply to go with it!

ethermion · 23rd June 2006, 04:26 PM

Yes, kudos to Isco. They guy said it was "refreshing" to find someone who knew what vacuum tubes are, and was happy to help.

They are fairly cheap here. I know a guy with a pile of them. Probably get it for ~$50, but it will cost $85 to ship it across the pond. Then you have to convert it to 220/240, but that is documented in the .pdf

EC8010 · 23rd June 2006, 05:03 PM

OK, I'll bite. How big is it?

ethermion · 23rd June 2006, 05:12 PM

40 pounds/ 18 kg. I emailed my buddy ...

EC8010 · 23rd June 2006, 05:17 PM

My word, that's substantial (but not wholly impractical). Actually, what I really meant was rough dimensions H x W x D. Inches or mm are fine.

ethermion · 23rd June 2006, 05:24 PM

About 12"x7"x14", WxHxD. The weight is shipping weight.

Looks like to convert to Eurovolts, you need to replace a circuit breaker, and rewire the xformer. No biggie.

EC8010 · 23rd June 2006, 05:36 PM

I'll give this some thought...

ethermion · 23rd June 2006, 06:14 PM

email to

eric_e at mail dot ru

and I will give you his info.

rdf · 24th June 2006, 01:01 AM

Nicely done ethermion! Greatly appreciate the sharing. I never quite realized how much went into these boxes.

23rd June 2006, 01:53 PM	#1
ethermion diyAudio Member Join Date: Apr 2005 Location: ffx station, va	Isco 494 Isco rocks! I just got some documentation from the company, and I'm sharing for the rest of y'all who have one too. http://www.eisenhower.org/eric/isco/494.pdf Operations Theory Schematics Layout Troubleshooting Tips on replacement parts, w/ Newark numbers! Enjoy! __________________ -e

23rd June 2006, 01:59 PM	#2
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	10/10 for Isco in providing useful information. Now all I need is the power supply to go with it! __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

23rd June 2006, 04:26 PM	#3
ethermion diyAudio Member Join Date: Apr 2005 Location: ffx station, va	Yes, kudos to Isco. They guy said it was "refreshing" to find someone who knew what vacuum tubes are, and was happy to help. They are fairly cheap here. I know a guy with a pile of them. Probably get it for ~$50, but it will cost $85 to ship it across the pond. Then you have to convert it to 220/240, but that is documented in the .pdf __________________ -e

23rd June 2006, 05:03 PM	#4
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	OK, I'll bite. How big is it? __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

23rd June 2006, 05:12 PM	#5
ethermion diyAudio Member Join Date: Apr 2005 Location: ffx station, va	40 pounds/ 18 kg. I emailed my buddy ... __________________ -e

23rd June 2006, 05:17 PM	#6
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	My word, that's substantial (but not wholly impractical). Actually, what I really meant was rough dimensions H x W x D. Inches or mm are fine. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

23rd June 2006, 05:24 PM	#7
ethermion diyAudio Member Join Date: Apr 2005 Location: ffx station, va	About 12"x7"x14", WxHxD. The weight is shipping weight. Looks like to convert to Eurovolts, you need to replace a circuit breaker, and rewire the xformer. No biggie. __________________ -e

23rd June 2006, 05:36 PM	#8
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	I'll give this some thought... __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

23rd June 2006, 06:14 PM	#9
ethermion diyAudio Member Join Date: Apr 2005 Location: ffx station, va	email to eric_e at mail dot ru and I will give you his info. __________________ -e

24th June 2006, 01:01 AM	#10
rdf diyAudio Member Join Date: Jun 2004 Location: big smoke	Nicely done ethermion! Greatly appreciate the sharing. I never quite realized how much went into these boxes. __________________ Ears aren't microphones.

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