Schematic Links, Tube retail links, local tube testers
- Thread starter outlawmws
- Start date
HHScott site now resides at: https://www.vacuum-tube.eu/www.hhscott/default.htm
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Excellent news, if only it were true !! I tried 3 times and just landed at someone’s home page descriptions, but no further links to Scott that I could find.
worked for me:
Vintage H.H. Scott Hi-Fi Stereo Archive
HHScott reference for fans of vintage vacuum tube Scott consumer hi-if components from 1946 to 1966. Scott Stereomaster products include tuners, amplifers, speakers.
www.vacuum-tube.eu
@Wharfcreek , well, https://www.vacuum-tube.eu/www.hhscott/default.htm. , works for me right now? My first link goes (I don’t know why?) to the main vacuum-tubes.eu page but thanks to @zim bida .
EDIT: post #239 corrected but I don’t know how to make what @zim bida made?
EDIT 2: @Wharfcreek , if you look at the bottom of the main index at https://www.vacuum-tube.eu/wp/ , you will see (there are even direct links to « site map », « gallery » and « schematics »):
Saved copies of once great but now defunct web sites
EDIT 3: knowing that it would eventually disappear one day, I’ve already made a complete local backup of the site on my computer several years ago with the help of a MacOS app called « Site Sucker ». However, I think the folk (s?) at vacuum-tube.eu did a better job!
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Just a quick update to the Scott page info: As of 12/13/23 the page is still up and working. Again, thanks to those who support this site!!!
WC
WC
b_youngblood
New Member
Berryville, VA (Near WV,MD,DC)
Jackson 648-1
Jackson 658
Hickok 539B
B&K 747
Coming soon...FUTracer
Jackson 648-1
Jackson 658
Hickok 539B
B&K 747
Coming soon...FUTracer
buffstereo
Member
I have a Stark 9-66 and an Amplitrex 1000A. I use a variac on both testers. The Amplitrex has a 115 VAC transformer, and the Stark has a low power transformer too. Given that the Amplitrex was made in this century, rather than the Stark (last century), I think Amplitrex could use a 120 VA power transformer!?! The variac makes sure that the higher VAC at the wall doesn't translate into a higher test numbers on the testers, (which it does). 
If your tester has a line voltage meter zeroing function as most if not all older ones do, not an issue.I have a Stark 9-66 and an Amplitrex 1000A. I use a variac on both testers. The Amplitrex has a 115 VAC transformer, and the Stark has a low power transformer too. Given that the Amplitrex was made in this century, rather than the Stark (last century), I think Amplitrex could use a 120 VA power transformer!?! The variac makes sure that the higher VAC at the wall doesn't translate into a higher test numbers on the testers, (which it does).
Bill Ferris
Lunatic Member
That AT-1000 mains input specification sticker is just for information incase the tester might be plugged into a higher or lower (Japan`s 100v) mains voltage than what it was originally configured for from the factory, being it uses a IEC removable power cord that someone might exchange the removable 120 volt plug type for a higher or lower voltage type and damaging the tester.
Contact the AT-1000 manufacturer about its true mains voltage input configuration specification and he`ll tell you that it is designed to operate properly and safely at +/- 10 % of 120 v AC, or continue to needlessly power your AT-1000 via a variac !
It doesn`t need a variac to feed it 115 v AC to operate correctly of safely, I ought to know, as I ran mine every day for over a week after purchase over 7 yrs. ago, from wake up until dinner on my kitchen table testing well over a thousand new and used tubes in my collection, and it performed perfectly without any signs of over heating or indicating that any tubes being tested, be them small or large types filament`s unusually bright.
And my multi decade experience with all types of electrical/electronic equipment has shown that some manufactures still for whatever reason, label their electrical products input voltage at the older 115 or 230 volt rating, even though since the seventies the power Co.`s serving voltages have been normally standardized at 120/240 in the US or sometimes slightly higher since.
Bill Ferris
Lunatic Member
Yes, no variac is needed, as the older era designed tube tester`s power transformers were wired for the current 110/115 v common AC mains at that time with their input mains voltage being adjustable via the tester`s control above indicated.
My 1981 repair shop`s partner`s more modern B&K 747 early ~mid seventies manufactured tube tester used a 120 v rated wired internal power transformer, but my older B&K 707 early sixties era built one was designed for 110 ~117 v mains range and had the incoming mains adjustable control so not to test a tube with too high or low filament voltage leading to incorrect true tube testing readings.
buffstereo
Member
Thanks folks, for responding about my concerns regarding my Amplitrex 1000 and Stark 9-66!
Phlogiston
Old Radio Fixer Upper
Tube Testing in Southern Oregon.
I have about every vintage tube tester. I'm not always available but will help when I can.
Home: https://www.russoldradios.com/
Note that we no longer offer parts/services.
I have about every vintage tube tester. I'm not always available but will help when I can.
Testing/Matching Audio Output Tubes
- - - or any large signal tube. If you can tolerate shopping for tubes on E-Pay you will often encounter the claim that an audio output tube is "tested" or that a pair is "matched", OR that a pair...
www.russoldradios.com
Home: https://www.russoldradios.com/
Note that we no longer offer parts/services.
Angola, Indiana
Hickok 600A
B&K 707
Hickok 600A
B&K 707
