I am working my way through Wes Hayward's book "EMRFD" along with Doug DeMaw's book "W1FB's QRP Notebook" and am creating a new part order. Yes, I will receive discrete parts for my Christmas present. Since I needed something to put under the tree a nice box from Mouser would look just fine. However, I have run into an impasse. I need some 2N4416s and some BB104s and find them either as scarce as hen's teeth or dear enough to make Croesus cringe. Thus my request from this auspicious group. Audacious may be more accurate :) but I digress. Long ago (circa 1969) I had a manual for substitutions of various transistors. Said manual held substitution charts and specs for a variety of bipolar transistors. I was wondering if there are any online sources of material similar to this manual. Barring that could anyone offer some available and inexpensive (think cheap, I am a radio amateur and there are traditions to uphold!) parts which would fit into the circuits I am trying t o craft without too much bias fiddling, reactance matching, or other such work arounds. I have some BB105s on the way from W0EB but they do not have the range of the BB104s (24 - 42 pF as compared to ~1.8 - 2.8 pF) Varactors seem to be getting as scarce as the old fashioned variable capacitors unless one wants SMT. Soon I will be using more SMT but for now I would like to have larger parts.
My queries: 1) A varactor with a range similar to the BB104 in a leaded form. If leaded is not available I will go with SMT. 2) Lists of transistors and FETs with fT and power ratings, etc. I want to explore VHF and UHF VFOs even though I do not hope to tame one. Much like tilting at windmills impossible challenges are interesting and pleasurable pursuits. I am not mad (at least that is what the voices told me :) Thank you for any assistance offered. 73, Kevin. KD5ONS ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html