[Heathkit] IT-12: "Eye" tube arrived today, a vast improvement, summer regen project

[Phil]

Today the eye tube that a list member sent me arrived safely and is nice 
and bright like it should be (no longer have to turn the room lights off 
to dimly see it).

The last item to 'fix' on this signal tracer is the probe.  The probe 
plastic was broken, and my attempts to fill in the missing chunks with 
JB Weld were unsuccessful. Ever try to fill in a large piece of a curved 
object with a product that is "fluid"?  The PC board that the switch is 
mounted on is also broken in half (somebody tried to glue it 
unsuccessfully) and I figured on making a new one out of perf-board.

Another (scope?) probe is on it's way and between the two I should be 
able to make a good probe.

I expect that this instrument is going to get a LOT of use in my 
homebrewing and repair projects.
************************

Speaking of projects.  My PRIMARY summer project is the construction of 
a Regenerative receiver, primarily for the NDB band (200-530KCs) but 
also BCB and SW.  It's basic line-up is a 6AK5 grounded grid pre-amp 
(untuned), 1/2 12AU7 as an Armstrong Regen detector, 1/2 12AU7 cathode 
follower coupled to the plate of the detector to provide a "counter 
output" for calibration, 12AX7 two stages of AF with Low-Pass, 
High-Pass, 400Hz & 1020Hz filtering (like I said, primarily NDB's and 
CW), 6AQ5 output & 0B2 regulator for the detector.  I originally was 
only going to use 1/2 of the 12AX7 for the audio amplifier, but a couple 
members of the regen group said I might want more gain.  So, if it's 
excessive I can always "pad it down" between the stages.

I have the chassis and panels, tube sockets some of the tubes, tuning 
cap, Audio chokes for the AF filters etc.  EVEN have a nice Emmco 
vernier dial (from the 1920's) for the tuning dial!

Sunday afternoon I'm driving over to Los Banos to get most of the other 
stuff (power/output xformers, old Octal tubes for coils, etc) as a ham 
friend there said he has most of what I need sitting in the shed. THEN I 
can start cutting holes and the construction proper. . .

-- 
73 de Phil,  KO6BB
http://www.qsl.net/ko6bb/  (Web Page)

PRESENT RADIOS:
Grundigs:    S-350 (~2006), G6 (2011) & S450DLX (2014).
Icom:        R-75 With Cascaded 250 & 125Hz CW Filters. (~2005)
Icom:        IC-7200 Transceiver (~2015).
Radio Shack: DX-380 digital portable (~1990).
Zenith:      Royal-7000 Transoceanic Portable (~1968).

ACCESSORIES:  Homebrew LF-MF Pre-Amp, MFJ-993B HF Auto-Tuner.
               Homebrew 8 Hz Audio Filter.

ANTENNAS:  88 foot Long Ladder-line fed dipole at 35 feet AGL.
            Active Mini-Whip at 36 Feet AGL for LF/MW.
            37 foot "Low Noise Vertical" at 11 feet AGL for LF/MW/SW.

Merced, Central California, 37, 18, 37N   120, 30, 6W CM97rh