Nice find. In my collection I also have a 1101, as well as its big brother the 1103. The 1103 is very similar in looks, but has a row of push buttons on the front. I have a manual for the 1103, not for the 1101.
Bill v From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Nick Sent: Friday, June 12, 2015 6:49 AM To: neonixie-l@googlegroups.com Subject: [neonixie-l] Heathkit IB-1101 Frequency Counter Paid a visit to the The British Vintage Wireless and Television Museum <http://bvwm.org.uk/> which is an extraordinary place - over 1,000 vintage radios and TVs from the 1920s onwards, most of which (including the TVs) have been restored to working conditions - mainly one man's obsession... just round the corner from John S and next to my old school - I never knew it was there when I was at school, but that was a while ago and I wasn't that interested in that stuff back then :) Anyway, they had a "swap table" for people tpo bring stuff they didn;t want any more which was sold to raise money for museum funds... I swore I wasn't going to ever buy any more nixie stuff, but then... ...I picked up an Heathkit IB-1101 0-100+MHz 5-digit frequency counter for a pound (about USD 1.55), including its manual. Interestingly, the use "Annn" for resistors, "Bnnn" for capacitors and "Cxxx" for valves and ICs... Note the long tube in one photo - this is a multi-turn 1-30pF trimmer for the timebase. The XTAL is especially selected for good accuracy and temperature stability (so the manual says!) - they claim 1ppm/month after leaving it on for 30 days... Tubes are NL950S (or B-5859S) - all are socketed. When I got it one of the drivers had gone and its was pretty filthy, but otherwise fine... nicely made unit... Nick -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/8557eade-9c99-4b65-b18a-5ca9f09b2711%40googlegroups.com <https://groups.google.com/d/msgid/neonixie-l/8557eade-9c99-4b65-b18a-5ca9f09b2711%40googlegroups.com?utm_medium=email&utm_source=footer> . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/002101d0a504%24a958dd90%24fc0a98b0%24%40com. For more options, visit https://groups.google.com/d/optout.
