|Caution, explicit photos...the collection to date! The vintage people will like this!|
Message #1 Posted by Geoff Quickfall on 4 Feb 2008, 6:01 p.m.
Hello to all you vintage collectors, don't mind me, I have had the HP bug since my 25c in 1975.
My first exposure to the 67/97 dual was as a research assistant while as an undergrad. Boy talk about state of the art at that time. Well had to wait a few years but now I have 3 67's with working and restored card readers as well as the NOS 67 pictured here. The 97 also came along as you can see.
Later while doing my MSc I aquired an HP 41C which needs a new display but is not pictured here. It was so versatile that when I got my first flying job I picked up 41CX that just hit the market. Since then I have added a second HP 41CX and a bunch of accessories; the plotter, IL printer, IR printer and IR module, PPC ROM, 2 X Memory modules, Stat module and a 9114b disc drive.
So thats the history and here are some self explanatory shots I took with the new camera and a photo program.
All these calcs were restored where mentioned by me at home. I am not an electronics expert or an engineering grad but I have always enjoyed soldering and fixing electronics.
Hope you enjoy the photos.
HP 35 WITH PRINTED KEYBOARD, un-restored and in non-working condition. Lights up but keyboard unresponsive and lots of corrosion on the battery prongs. Initially bought for parts but will be restored instead.
HP 35 was in similar condition to the above when it arrived but now works and looks great!
HP 45 unrestored but in fully functional condition. The timer loses about 7 seconds a minute as usual for these prototype timers.
HP 45Q (Q for quartz!. Fully restored from a non-functioning condition. I had secured a spare HP 55 keyboard with a 780 kHz quartz crystal which I then, following instructions at this site, wired into the timing circuit. The calculator is fully functional, looks like new stock and has the accuracy of the HP 55 and my HP 41CX.
HP 55 fully restored also from a non functioning condition. The calc was completely dis-assembled, keys washed separately and the top half-spine-bottom half were cleaned. The top half had a bad white bloom in the finish and made the functions illegible. This was remedied by a thorough wash (gently) followed by drying and a matte spray varnish for plastic. I think it came out quite well and the timer is extremely accurate. After two hours the HP 55, HP 41CX and the HP 45Q were reading the same time to the second
A new old stock HP 67. I was informed by my local battery/electronics shop where they know me that a local elderly gentleman had a non functioning HP 67. Would I be interested in it. I dropped by the owners house and to my surprise was greeted by a 97 year old professor of Archeology. He was finishing a paper for publication in a journal of Archeology and required a Statistics calculator. He purchased the HP 67 new and never used it back in 1981. It sat in its' original box not unpacked for the last 30 years.
He did not want to be bothered with learning it or using the card reader etc and had purchased a Casio instead. Well I offered to sell it for him but he couldn't be bothered. I suggested that it would sell for quite a bit but he just wanted it to go somewhere where it would be appreciated.
I ended up purchasing it for $50.00 US and with that got the outer box, unused calculator, adapter, separate battery charger and original batteries still shrink wrapped. As well as a shrink wrapped HP 67 Manual, guide, quick reference card, programming pad, reciept and etc. all still shrink wrapped!
You can see the untouched label in this picture.
This HP 91 in came pieces, in a box... well the picture says it all.
Non functioning card reader and printer. Using Katie Wasserman's article on printer repair I secured an aluminum gear, which, following instructions was used to replace the gummy printer gear. I also repaired the gummy wheel problem on the card reader.
This and one of my other 67's bears the weight of my work in the cockpit. I have programmed this 41CX with some custom programs which are accessed as seen on the overlay.
You can see here the modules I use for day to day operations.
HP 01 group shot including the almost NOS stainless version
Close up of the above.
Edited: 4 Feb 2008, 9:57 p.m. after one or more responses were posted