1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Heathkit VTVM
David
Phorum Expert
*****
Posts: 1,183
Threads: 23
Joined: Jan 2014
City: Wellborn Florida
#17

07-15-2014, 08:41 PM
Warren I have a old radio shack Hatitachi(sp) VTVM from around 1968 which I purchased new. Ok I am getting old! When new would take around 15 minutes of warm up before you could trust the readings. Recap a few years ago check resistors still takes a good 15 minutes warm up. David
Find
« Next Oldest | Next Newest »


Messages In This Thread
Heathkit VTVM - by Warren - 07-12-2014, 11:16 PM
RE: Heathkit VTVM - by morzh - 07-12-2014, 11:19 PM
RE: Heathkit VTVM - by Warren - 07-12-2014, 11:21 PM
RE: Heathkit VTVM - by Radioroslyn - 07-13-2014, 05:49 AM
RE: Heathkit VTVM - by tab10672 - 07-13-2014, 08:04 AM
RE: Heathkit VTVM - by codefox1 - 07-13-2014, 11:42 AM
RE: Heathkit VTVM - by Warren - 07-13-2014, 03:33 PM
RE: Heathkit VTVM - by gregb - 07-13-2014, 05:09 PM
RE: Heathkit VTVM - by Phlogiston - 07-13-2014, 07:38 PM
RE: Heathkit VTVM - by Warren - 07-13-2014, 08:15 PM
RE: Heathkit VTVM - by Radioroslyn - 07-14-2014, 04:49 AM
RE: Heathkit VTVM - by TA Forbes - 07-14-2014, 09:28 PM
RE: Heathkit VTVM - by Warren - 07-14-2014, 11:20 PM
RE: Heathkit VTVM - by TA Forbes - 07-15-2014, 08:08 AM
RE: Heathkit VTVM - by Warren - 07-15-2014, 02:55 PM
RE: Heathkit VTVM - by codefox1 - 07-15-2014, 08:34 PM
RE: Heathkit VTVM - by David - 07-15-2014, 08:41 PM
RE: Heathkit VTVM - by Warren - 07-15-2014, 09:21 PM
RE: Heathkit VTVM - by Phlogiston - 07-15-2014, 11:37 PM
RE: Heathkit VTVM - by Bradley Rush - 07-21-2014, 11:40 PM
RE: Heathkit VTVM - by Warren - 07-22-2014, 04:26 PM
RE: Heathkit VTVM - by codefox1 - 07-24-2014, 09:03 PM
RE: Heathkit VTVM - by codefox1 - 07-24-2014, 09:07 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 91 Speaker Replacement
The spider is glued on the cone and so is the voice coil. I think you can use a cotton swab dipped in acetone and carefu...RodB — 02:42 PM
Restoring Philco 37-604C
Yes I saw that. If I knew, I'd probably try to arrange for getting it myself. But I have just got one. Which does not m...morzh — 01:44 PM
Philco 38-2 Automatic Tuning
When you push the lever, you are supposed to rotate the disk to the desired station. Then the magnetic tuning will acqu...morzh — 01:42 PM
Philco 38-2 Automatic Tuning
I figure out the muting from another picture that helped. Now I need to know how the automatic tuning works. When I push...dconant — 12:11 PM
Philco 91 Speaker Replacement
How would I go about removing the spider from the cone?dconant — 12:04 PM
Philco 38-2 Automatic Tuning
Hello, I am having trouble getting my automatic tuning to stay unmuted. If I play with the tuning handle I can get it to...dconant — 10:51 AM
Does anyone make photofinish replacements?
Here’s the link to the DIY photofinish section of our site: klondike98 — 09:46 AM
Delco car radio Peko vibrator converstion issues
Hi Richard, Thx for posting the schematic.  As I remember as a kid, these were great performers for the time, likely...MrFixr55 — 08:56 AM
Delco car radio Peko vibrator converstion issues
hello mr Fixr, The Electro  Powersupply that I am powering the radio with has a huge choke plus a 10,000ufd electrolyti...radiorich — 10:58 PM
Delco car radio Peko vibrator converstion issues
How about putting a choke in the power supply? The big cap was likely an attempt to stabilize the DC. Kids who cre...MrFixr55 — 09:19 PM

[-]
Who's Online
There are currently no members online.

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment