thad@cup.portal.com (Thad P Floryan) (10/11/89)
Having been sort-of away for awhile (business; teaching classes; and working the "normal" 25 hrs/day, 8 days/wk :-), I finally today had a chance to catch up with what's happening at the local electronics stores during lunchtime ... looks like a Scavenger Hunt for UNIXPC parts! If you remember, several months ago I "found" pallet after pallet of UNIXPC keyboards at CSS (aka Weird Stuff Warehouse) in Milpitas, CA. Today I found UNIXPC power supplies. Brand new. Both 3B1 and 7300 models. In the original boxes from Power Systems, Inc. (12 Tobey Road; Bloomfield, CT 06002). The 3B1 supplies are in individual cardboard boxes, and the PC 7300 supplies are in slabs of 8 in boxes of 40 (wrapped in pink anti-static foam). It appears that Convergent's inventory is being scattered throughout Silicon Valley. In any event, I hope you're sitting down before reading: QTY HSC Inventory Price Each, AVAIL locator number Description Quantity=1 ----- -------------- ---------------------- ---------- 1018 10290 3B1 power supply $9.95 245 10292 PC 7300 power supply $9.50 The GENERAL differences between 3B1 and PC 7300 power supplies are: 3B1 supplies 5 Amps at +12 VDC, 7300 supplies 3.5 Amps at +12 VDC 3B1 supplies 300 mA at -12 VDC, 7300 supplies 100 mA at -12VDC 3B1 supply has a direct cable to the hard disk power connector 3B1 supply has a power cable for only ONE fan The 3B1 supplies I found today are EXACT replacements for the production 3B1 power supply; the PC 7300 supplies are a "little" bit different. Mechanically, all these supplies are plug-plug replacements. Following are the stats from my 3B1, my PC 7300, the "today" 3B1 supplies, and the "today" PC 7300 supplies: my today's my today's 3B1 3B1 PC 7300 PC 7300 Power In: 90-130 VAC 90-130 VAC 90-130 VAC 90-130 VAC (Silkscreened 245 W 245 W 195 W 195 W legends) 58-63 Hz 58-63 Hz 58-63 Hz 58-63 Hz Power Out: +5, 20 Amp +5, 20 Amp +5, 20 Amp +5, 20 Amp (Silkscreened +12, 5 Amp +12, 5 Amp +12, 3.5 A +12, 3 Amp legends) -12, 300 mA -12, 300 mA -12, 100 mA -12, 300 mA PSI Model: PS 1610-1 PS 1610-1 PS 1569 PS 1569 Convergent P/N: D-65-00056-01 D-65-00056-01 D-65-00042-00 D-65-00060-01/ A Revision: B A E A Thermal Breaker: 50 C 50 C 45 C 45 C Wiresets to fans: 1 1 2 1 Cables to hard disk: 1 1 none none Note: "PSI Model" is the silkscreened (by Power Systems, Inc.) model number. If any of this interests you, contact Mark at: Halted Specialties, Inc. 3500 Ryder Santa Clara, CA 95051 408/732-1573 415/969-1448 (foreign exchange line for N. Silicon Valley) Be SURE to specify the HSC inventory locator number (at the beginning of this posting) AND the price to be sure you order the correct part. HSC has walk-up counter service, and mail-/phone-order. They accept VISA, M/C, cash and checks . Don't expect to find all of these in the floor display area; most of the power supplies are in the (back) warehouse. At these prices, it makes sense to have a spare power supply (or 2 (or 3 :-)) Thad Floryan [ thad@cup.portal.com (OR) ..!sun!portal!cup.portal.com!thad ]
ovdluhe@ethz.UUCP (Oskar von der Luehe) (10/12/89)
In article <22964@cup.portal.com> thad@cup.portal.com (Thad P Floryan) writes: [lots of stuff deleted...] > my today's my today's > 3B1 3B1 PC 7300 PC 7300 > >Power In: 90-130 VAC 90-130 VAC 90-130 VAC 90-130 VAC >(Silkscreened 245 W 245 W 195 W 195 W > legends) 58-63 Hz 58-63 Hz 58-63 Hz 58-63 Hz ^^^^^ ^^^^^ ^^^^^ ^^^^^ I'd like to mention to the community that I'm running a 7300 through a 220V/110V transformer at 50 Hz without any trouble. These supplies seem to digest 50 Hz as well. >Thad Floryan [ thad@cup.portal.com (OR) ..!sun!portal!cup.portal.com!thad ] BTW: I received the WD2010 allright, Thad! Another public praise for a great job well done! -- Oskar von der Luehe UUCP: "...!unido!cernvax!ethz!ovdluhe" Institut fuer Astronomie SPAN: vdluhe@20641.span ETH-Zentrum DECNET: 20641::VDLUHE CH-8092 Zuerich, Switzerland
thad@cup.portal.com (Thad P Floryan) (10/14/89)
Oskar von der Luehe comments: I'd like to mention to the community that I'm running a 7300 through a 220V/110V transformer at 50 Hz without any trouble. These supplies seem to digest 50 Hz as well. Jim Sanchez has been running his 3B1 in Brussels on a step-down transformer also at 50Hz for some time (almost 2 years now), and all seems to be OK. One comment for those who called Halted Specialties and DIDN'T speak to Mark when ordering the UNIXPC power supplies (per my posting earlier this week): the OTHER employees apparently were unaware of the nature of the power supply and, I heard, were actually telling people NOT to buy the power supply! I heard this today (Friday) from Ken Meller (another member of our local UNIXPC user group) who straightened them out! Apparently a LOT of people are ordering the power supplies, and everyone at Halted is now cognizant of the situation. Oskar also comments: BTW: I received the WD2010 allright, Thad! Another public praise for a great job well done! You're welcome! BUT: the job still isn't completed. As I mentioned, I've been "away" for awhile and upon return discovered email indicating that seven (7) of the WD2010 chips are bad, and everyone has reported the exact same symptoms. I'll be sending private email to those people and be working on getting replacement chips; I'm curious as to the date code on the bad chips. Someone recently posted the availability of WD2010A chips for around $18 from some company. The first WD2010 chip I got (from ACE) was a WD2010A and is still working fine; the chips that were purchased on the WD2010-group-buy were the WD2010B model, and these also (except for the 7 bad ones) work fine. Anyone know the difference(s) between the "A" and "B" variants? And, as a general comment, 7 bad chips out of 180 is a very high failure count. That's why I'm interested in knowing the date code of the bad ones, to determine if they're all from the same batch. The date code is a number like "8724", "8904", etc appearing after the "05-02" on the 3rd line of the lettering on top of the chip. (Yes, 180 chips were ordered on the group buy.) Another person (locally) discovered that Seagate uses the WD2010 chip on their disk controller cards (for 20MB HDs). He "borrowed" the chip from the Seagate card and it apparently works fine in the UNIXPC! Thad Floryan [ thad@cup.portal.com (OR) ..!sun!portal!cup.portal.com!thad ]