Black Board
All prices in this catalogue are in EUROS per piece (or per
meter if wire etc.) if not indicated otherwise and plus
shipping.
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Finally available again, a rectangular tube for the scopeclock.
4MP1, US-mil. surplus, 10cm / 4" diagonal, works flawlessly on our scopeclock kit
The offer is online at our Scopeclockpage
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Compact cathode bias electrolytic, made by FT, 47uF (50uF), 250V, authentic size of 12*26mm, made by FTCap in Germany.
The offer is online on our cap page.
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Many of you know our cloth covered hookup wire already, they are still available in nine colors of cotton braid.
Now there is something better available: Our cable guy found a stranded wire with a high tech insulation sleeve which is very thin
but rated at 1000VAC (10000V AC test voltage), this results in very high electric reliability at about the same diameter as the old wires.
We offer those per meter in nine colors.
The offer is online on our cable page.
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Another new offer:
We got a bunch of US made B7971 huge alphanumerical nixies.
That was quite a spectacular find that does not happen every day.
They were pacekd in original packing crates but we do not know if and if yes how many hours they have on their clock.
So we lit them up and measured them thoroughly, segment by segment, of course we also documented this, again segment by segment...
Here you will find a PDF with photos showing us what exactly we did..
From stock we can offer B7971 USA measured and checked and running smoothly,
The offer is online on our nixie-page.
Our stock is large enough for FLW projects or similar
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New triple electrolytics with minus
on solder lug and screw mount
Almost everbody knows the classic radio screw mount caps with minus on can,
we also sell a large assortment of those.
We expanded the range now with triple electrolytics in compact screw mount
cans - sure they can also be clamp mounted
Those do have minus on a separate solder lug.
Brand new series, all made in the highest voltage range of 550VWkg / 600V
surge, Quality made in Germany. Those caps also replace three-prong twistmounts
on compact chassis.
Use in jukeboxes, tuners, like the Marantz-7, etc.
In stock:
KON66D16: 16+16+16 uF at 550V:
KON66D20: 20+20+20 uF at 550V, Special one for Marantz 7
KON66D50: Multi purpose, 50+50+50 uF at 550V,
The offer is online on our electrolytics catalog page
Those caps really fill a gap between the "normal" screw mount caps and the
four-prong twistmount Authenticaps.
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New series of FTCap screw mount electrolytics.
Until now all twin and triple screw mount caps follow German tradition with
minus on can.
This can cause trouble if you need a solder lug with minus UNDER the chassis
and this is why
we extended the product range. Beside the single section 16,32 and 50uF
caps which always have had and will ever have
minus on a separate solder lug we stocked up and extended our assortment:
16+16 ; 32+32; 50+50 and 100uF single caps are
now available as fully shrink-sleeved screw mount caps. Those replace single
and double section three prong twistlocks nicely
The offer is online on our electrolytics catalogue page :-)
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Grown range of
economy line: Those axial audio grade film caps are rated 1500V.
This is a reasonable expansion of our stock line of HighGrade caps offering
good performance at
very reasonable prices.
The range has been extended and refined and we sell
them as assortments as well as by piece now.
The offer is online on the KFX catalogue page (here).
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Mini-Scopetubes
for use in Marantz tuners etc.
Brand new Telefunken tubes, really cool looking blue phosphor, a true eyecatcher
!!!
The offer is online on our scopeclockpage.
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A short FAQ about
our pages and a little history
Wo ist die Deutsche Version ?
Hier. 
Ou sont les pages Françaises ?
Ici. 
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Simply visit or subscribe to our Telegram channel(s), see top of page for direct access.
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No, we do not have a public store.
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If there is no index framebar on the top, please click
here.
For pictures, datasheets and additional info click
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us can be found here.
Can I download this pages for offlinebrowsing?
Currently we offer no lists for download.
By the way: Who or what
is Ask Jan First ®
??
We are a tube and antique electronic supply
part company, founded in 1993 and online since 1998.
In the last years, we have served many thousands of customers worldwide.
(From New Zealand to Canada)
Please ask us if you are looking for a tube or parts not listed here, we
might well be able to find it for you.
Does Ask Jan First buy tubes?
Yes, we do. But we are no price consultant if
you want to sell stuff on auctions not knowing where to start ;-)
I am looking for your postal address.
Here it is.
Frag´Jan Zuerst - Ask Jan First
GmbH & Co. KG
Jan Philipp Wüsten
Preiler Ring 10
D- 25774 Lehe
Germany
Telephone: +49-4882-6054551
Telefax: +49-4882-6054552
fjz@die-wuestens.de
alternative email:
fjz@gmx.de
Those pages can be accessed at
https://www.die-
wuestens.de
http://www.electron-tubes.info
http://www.fragjanzuerst.de
(and some more mirrors)
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