"Model 563 Addendum Regarding Option 1 Upgrade" is attached. I don't have an Opt-1 upgrade, so I can't be of further assistance. 73, Dave, K1FK Fort Kent, ME
The major cause of the Titan I power output and tuning drift problem is due to dielectric heating of the plate circuit DC blocking capacitors. Ten Tec uses two 0.001 uF/6 kV disc ceramic capacitors w
Here is some data that may shed light on the discussion dealing with 962 PS heatsink tempeature. These tests were performed on an OMNI-VI Option 3 and 961 power supply today. 73, Dave, K1FK Fort Kent
This is a commom problem with TT QSK amps. You can replace the Kilovac K41C234 relay with a RJ1A relay. The RJ1A is available on surplus market for as little as $35. I can supply .JPG photos of the r
I am not familiar with the paint color or schemes for your Corsair (1)'s, but the following info might be of use to you and others on this reflector. The paint used on OMNI-VI and VI+ is manufactured
The [RELAY N.O.] output of the VI and VI+ must not see greater than 30 volts DC from the circuit being keyed. The limiting factor appears to be the voltage ratings of the RF bypass capacitor (C8) and
If anyone is interested in making a modification to the 425 Titan amp. to replace the disc ceramic plate coupling caps to 5 kV doorknobs, I'll be happy to email .JPG files containing instructions, ph
Several have asked if a replacement relay is feasible. I have successfully swapped out the original 12 VDC K41C relay with a 26.5 VDC HC-1 relay ($35 in surplus circles) and have run it extensively i
The collector current to the PA output transistors is monitored as a voltage drop across R5 (0.015 Ohm/10W) on the DC input board and fed to op amp U2 and Q14 on the 9 MHz mixer/IF board. U1B compare
My 1965 Corvette, special factory order, special equipment, 375 HP fuel injected, close-ratio 4-spd gearbox, air conditioned, etc., cost me less than half of the price of the '7800 ... and it 'snagge
I can personally confirm that W2VJM (Inrad) is working full-time on the OMNI VI+ mod., and I assure it will be worth waiting for. For an indication of the IP3 DR performance improvement that [can] be
GIGAVAC http://www.gigavac.com/products/relays/ham has introduced a line of "affordable" vacuum relays for amateur radio applications. The G41C HAM is a $75 replacement for the very expensive KiloVac
Inrad #752 2.1 kHz BW, 9 MHz IF SSB filter. $85 including Priority Mail in CONUS. Replay via direct email. 73, Dave, K1FK Fort Kent, ME _______________________________________________ TenTec mailing
Ten Tec #217 500 Hz @ 9 MHz filter. $80 including Priority Mail in CONUS. Please reply via direct email. 73, Dave, K1FK Fort Kent, ME _______________________________________________ TenTec mailing li
The recent discussions on the reflector regarding Temperature Compensated Crystal Oscillator (TCXO) versus Oven Controlled Crystal Oscillator (OCXO) in the OMNI-VI (retrofitted) and VI+ (retrofitted
Model #217 9 MHz - 500 Hz BW filter. Factory new 1/4/2005 - never installed. Includes installation instructions for OMNI V/VI/VI+ and Orion transceivers and response curves. $80 shipped Priority Mail
For the record, I too was apparently a "target" of Mr. John Swisher, KE4CCI in December 2004/January 2005. On 12/15/2004 he responded to my posting to sell a #217 filter. Two days later on 12/17/2004
An Inrad roofing filter mod. installed in the OMNI VI/VI+ renders the NB function inoperative. The reason for this is that the noise pulse is stretched in width by more than 2000 times as it passes t
Kirb, The VI/VI+ T/R relay will easily handle that level and current. The limiting factor in the VI/VI+ T/R circuit are two capacitors (C8/C14) across the NO relay contacts, which are 50 WVDC devices