IP-20 Question

[Gary Fortnum]

Greg,
The IP-20 from Heathkit did not have a 1000 uFd capacitor across the output terminals but it did have a
0.2 uFd (C5). There is however a 500 uFd 50 Volt capacitor (C4) but it is on the unswitched side (other
side) of the DC ON/STANDBY switch.
BTW, the IP-20 & IP-27 are almost identical in their circuitry with the main difference being that the OB2
regulator tube in the IP-20 is replaced by a Zener regulated reference supply in the IP-27.

Regards, Gary.

>
> From: "Greg at Bowser.com" <Greg at BOWSER.COM>
> Date: 2004/01/17 Sat PM 11:35:46 EST
> To: HEATH at LISTSERV.TEMPE.GOV
> Subject: IP-20 Question
>
> I just realized that I had made an error in my message asking about the
> IP-22 power supply.  It
> should have been an IP-20 instead.  Here's the corrected question:
>
> I have a Heathkit IP-20 power supply and it has a 1000 MFD 50 VDC capacitor
> wired to the two output terminals. Was wondering if Heath had design it
> this way or did someone add this capacitor? I hope that someone with a
> IP-20 book can help me out.
> Thanks,
> Greg W8NGA
>
> -----------------------------------------------------------
> Products bought, sold or traded here is the responsibility of the
> parties involved.  This list and the City of Tempe are not responsible
> for losses or misrepresentations of any kind.  Buyer beware!
>
> -----------------------------------------------------------
> This list is a public service of the City of Tempe, Arizona
> -----------------------------------------------------------
>
> Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
> To post - HEATH at LISTSERV.TEMPE.GOV
> Archives - http://interactive.tempe.gov/archives/HEATH.html
>

-----------------------------------------------------------
Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://interactive.tempe.gov/archives/HEATH.html