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The club newsletter "Cheese Bits" has been published for more than 50 years with a current circulation of more than 300 US and International subscribers. Cheese Bits contains a monthly activity calendar, swap shop ads, technical articles, operating news and articles of interest to the VHF community.

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Small Packrat Logo
Editor:
Lenny, W2BVH
E-mail: Lenny
 
 


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PDF Index of Technical Articles in past issues of Cheese Bits
Send E-Mail to Lenny, W2BVH for copies of specific articles not on this WEB site.

APRIL 1983     220 MHz AMPLIFIER 5D1434                     WA3JUF
MAY 1983       BIAS MODIFICATION TO 220 MHz LINEAR AMP             WA3JUF
MAY 1983       P.C. LAYOUT FOR 220 MHz LINEAR AMP   WA3JUF
JUNE 1983      OSCILLATOR DATA FOR L.O. CHAINS           W2EIF/WA3JUF
AUG 1983        AUTOMATIC NICAD CHARGE/DISCHARGE UNIT             WA3JUF
DEC 1983        28 MHz DIPLEXER CIRCUIT FOR DBM’S     WB3JYO
FEB 1984         1296 MHz 2-POLE INTERDIGITAL FILTER           WB3JYO
APRIL 1984     MODIFICATIONS TO W6P0 1296 MHz PREAMPS           WA3JUF
MAY 1984       METER SHUNTS REVISITED                         WA3JUF
NOV 1984        1296 MHz AMPLIFIER                                  WA3JUF
DEC - 1984      1296 MHz AMPLIFIER SD1359                   WA3JUF
FEB 1985         5 WATT 1296 MHz LINEAR AMPLIFIER     WA3JUF
FEB 1985         Charging ICOM Battery Packs Thru Top Terminals        WA3JUF
MAR 1985  CHEAP ½” HARDLINE CONNECTOR           W3HMU
APRIL 1985     40 WATT LINEAR AMPLIFIER & SWITCHING SYSTEM   WA3JUF
MAY 1985       10 WATT 432 MHz LINEAR AMPLIFIER     WA3JUF
JUNE 1985      28 MHz POST AMPLIFIER                            WA3JUF
jULY 1985       USING ‘N’ CONNECTORS ON ½” HARDLINE        WA3JUF
JULY 1985       MOBILE REGULATED HT BATTERY ELIMINATOR  WA2FXB
AUG 1985        3 TO 30 WATT LINEAR AMPLIFIER FOR 144 MHz          WA3JUF
OCT 1985        2.5 WATT LINEAR AMPLIFIER FOR 2.3 GHz         WAJJUF
NOV 1985        CHEAP MICROWAVE TERMINATION AND LOAD             WA3JUF
DEC  1985       COMBINING TRANSISTOR AMPLIFIERS AT 1296 MHz   WA3JUF
DEC  1985       1296 MHz 10 WATT AMPLIFIER                 WA3JUF
JAN 1986         MODIFICATION TO BIRD 43 WATTMETER SLUGS          WA3JUF
APRIL 1986     0.8 WATT LINEAR AMP FOR 2.3 GHz           WA3JUF
APRIL 1986     NBS ANTENNA COMPUTATION -903 MHz           WA3AXV
MAY  1986      330 mW LINEAR AMPLIFIER FOR 2.3 GHz WA3JUF
MAY 1986       MODIFICATIONS TO PACK RAT 144 MHz XVTR WA3JUF
JUNE 1986      1 WATT LINEAR AMPLIFIER FOR 2.3 GHz W3HQT
AUG 1986        903 MHz 2-WAY POWER DIVIDER              N3CX
OCT 1986        NBS ANTENNA COMPUTATION - 50.1 MHz         WA3AXV
OCT 1986        1-2 WATT AMPLIFIER FOR 2..3 GHz            WA3JUF
NOV 1986        7 WATT CLASS C AMPLIFIER FOR 2.3 GHz           WA3JUF
JAN 1987         TRANSVERTER SWITCHING READOUT       WA3JUF
MAR 1987 FUSES             WA3JUF
APRIL 1987     HOW TO WIRE UP AN ELECTRIC CHAIR     N2SB
APRIL 1987     903 MHz FILTER                                            WA3AXV
APRIL 1987     GaAs FET PREAMPS FOR IC-451                  WA3JUF
MAY 1987       3456 MHz LINEAR AMPLIFIER I                  WA3JUF
JUNE  1987     903 MHz TRANSVERTER                              WA3AXV
JUNE  1987     3456 MHz LINEAR AMPLIFIER II                 WA3JUF
JULY  1987      3456 MHz 1 WATT AMPLIFIER                   WA3JUF
SEPT  1987     ADAPTER RING FOR 4CX250B                     N3CX
OCT  1987       CONVERTING F-196/U CAVITY TO 220 MHz      WA2OMY
NOV  1987       INTERDIGITAL FILTER & PWR DIVIDER     WA3JUF
DEC  1987       2304 MHz DOUBLER                                     WA3JUF
JAN  1988        HINTS ON XVERTER & AMPLIFIER SETUP           WA3JUF
FEB  1988        USING A CATV AMPLIFIER ON 903             WA3JUF
APRIL  1988    800-950 MHz LINEAR AMPLIFIER              WA3JUF
APRIL 1988     HINTS & KINKS ON I.F. FEEDTHRU             WA3JUF
MAY  1988      L.O. CHAIN FOR 3456                                    WA3JUF
JUNE 1988      2304 MHz BEACON TRANSMITTER            WA3JUF
JUNE  1988     ISOLATED KEYING CIRCUIT                         WA3JUF
OCT  1988       TRANSISTOR BASE BIAS SUPPLY                 WA3IWT
NOV 1988        3456 MHz POWER METER                           WA3JUF
APRIL 1989     MECHANICAL DIMENSIONS                         KA5JPD
APRIL 1989     CARE & USE OF GaAs FETS                           WA3JUF
MAY  1989      VHF/UHF WEAK SIGNAL SOURCES             WA3JUF
JUNE  1989     OVER-VOLTAGE PROTECTION                     WA3JUF
SEPT 1989      903 MHz DL6WU YAGI                                 N3CX
Jan 1991 432/1296 4-Way Power Divider WA3JUF
Jan. 1992 50 MHz Receive Converter WB3JYO
Feb. 1992 Microwave Frequency Standard K0KE
Feb. 1992 Pin Diode IF Switch and Attenuator WB5LUA
Feb. 1992 New Twist in Microwave Transverter WA5VJB
Mar 1992 902/903 MHz DL6WU Yagi Match* N3CX
Apr 1992 Relationship of Sensitivity and NF KB3XG
May 1992 24 Volt DC/DC Converter GW4LXO
June 1992 The Strength of Masts* N3AOG
June 1992 20 Watt 903 MHz Linear Amplifier WA3JUF
Jul. 1992 Andrew Coaxial Cable Information Andrew Corp.
July 1992 Mods for the SHF Systems 540 MHz LO WB3JYO
Aug 1992 Mixer/LO Mod for the 903 MHz No-Tune Xvtr* N3CX
Aug. 1992 Tips for using PLL Brick Oscillators WA3IAC
Oct 1992 3456 MHz Isolator/Circulator* WA3JUF
Nov 1992 A "Crunch-Proof" 144 MHz Receive Converter* WB3JYO
Nov 1992 144 MHz GaAsFET Preamplifier G1WBZ
Dec 1992 144 MHz Local Oscillator* WB3JYO
Dec 1992 1 Watt 2304 MHz Linear Amplifier WA3JUF
Dec 1992 Hybrid Power Splitters* WA3IAC
Dec 1992 Plumbing Parts as 7/8 Inch Hardline Connectors WB9GKA

* Appeared in Packrat Notes, 1995 Mid-Atlantic VHF Conference,
September 1995

Jan 1993 High Performance 222 MHz Transverter I N3CX
Feb 1993 High Performance 222 MHz Transverter II N3CX
Feb 1993 28 MHz Low-distortion Post Amplifier* WB3JYO
Feb 1993 2 Meter IF Load/Attenuator* WA3JUF
Mar 1993 Motorola Impedance Matching Program Motorola
Mar 1993 A No-Tuning Power Fet Pre-Amp G4SWX
Apr 1993 Intermodulation Distortion N3CX
Apr 1993 High Performance 222 MHz Transverter III N3CX
May 1993 A Solid State 6 Meter Amplifier Motorola
May 1993 DJ9BV 144 Yagi Designs DJ9BV
June 1993 Waveguide Data -
July 1993 144 MHz no-tune Preamplifier G4SWX
Aug 1993 Tests on the NE/SA600 NEC IC WA2OMY
Sep. 1993 28 MHz Low-distortion Post Amplifier WB3JYO
Oct. 1993 A 144 MHz Preamplifier* WB3JYO
Nov. 1993 Push-Pull Mosfet Power Amplifiers WB3JYO/KB3XG
Dec. 1993 144 MHz Band Pass Filter* WB3JYO
Jan. 1994 IF Switching* WA2OMY
Feb. 1994 DC/DC Converter WA6CGR
Feb. 1994 A 144 MHz Transmit Converter* WB3JYO
Mar. 1994 Hints & Bits - Power Output Monitoring* WA3JUF
Apr. 1994 Gary's Test Equip. Corner / Power Meters WA2OMY
Apr. 1994 144 MHz Transmit Mixer* WB3JYO
May 1994 Hints & Bits - Coaxial Antenna Relays* WA3JUF
May 1994 Hints & Bits - Driving Solid State Amps* WA3JUF
May 1994 Gary's Test Equip. Corner / Directional Couplers WA2OMY
June 1994 144 MHz 2N3866 Linear Amplifier WB3JYO
June. 1994 6 Meteor Scatter WB5KYK
J
uly 1994 More Pipe Cap Mania* KB3XG
July 1994 Notes on HP 432/478 N5GO
July. 1994 144 MHz SD1273 Linear Amplifier* WB3JYO
Aug. 1994 Gary's Test Equip. Corner / Signal Generators WA2OMY
Aug. 1994 AM-6154/55 on 222 MHz* WA3AXV
Oct. 1994 Some Thoughts on 432 Meteor Scatter & Shower Data WB5KYK
Oct. 1994 Using the HP8761A Relay for a T/R Switch WA3JUF
Oct. 1994 Power Supply and Control for DEM No-Tunes WA3JUF
Nov. 1994 Hints & Tips For Tower Mounting N1DPM
Dec. 1994 Parallel MMIC's* KB3XG
Dec. 1994 9913/N Connector Assembly
Dec. 1994 Hints and Bits: Building Transverters* WA3JUF
Jan. 1995 Temperature Compensation for Crystals* WA3JUF
Jan. 1995 6 Meter FM Base Antenna WA3AXV
Jan. 1995 More AM-6154/55 PROBLEMS* WA3AXV
Feb. 1995 Hy-Gain Antenna Control Box Modification WA3AXV
Feb. 1995 Microstrip Tuning Techniques Kerry Banke
Mar. 1995 Cheap Microwave Detector* KB3XG
Apr. 1995 10 GHz Transverter, "All the boring details", Part 1*KB3XG
May 1995 10 GHz Transverter, "All the boring details",
10 GHz Band Pass Filters* KB3XG
June 1995 Errata: 10 GHz Transverter, "All the Boring Details"* KB3XG
July 1995 10 GHz Transverter, "All the boring details", Part 2 1/2* KB3XG
Nov. 1995 Stripline Power Dividers WA3AXV
Dec. 1995 Using the Chapparral 11 GHz Superfeed at 10.368 Ghz N1BWT
Jan. 1996 Using the MFJ-484 Beacon Keyer WA3JUF
Jan. 1996 Do You Know where your Microwave Transverter Is? WA3JUF
Jan. 1996 Use of Microwave Phase Lock Sources WA3JUF
Feb. 1996 Antenna Height and Stacking OH1ZZA/NN0Y
Mar. 1996 New GaAS MMIC Amplifiers Minicircuits
Mar. 1996 RF Connectors N3AOG
Aug. 1996 Using Yagi Organizer to Design the New W3CCX 6M Antenna WA1YHO
Aug. 1996 Improved IMD Performance for the TS-850
Oct. 1996 Waveguide Around the Rotor WA3AXV
Nov. 1996 Antenna height and Forward Scatter VHF Reflector
Feb. 1997 T-Matching MMICS WA3IAC
Feb. 1997 VHFTIP - N Type Connectors KP4XS/4
Feb. 1997 2304 MHz BP Filter N6CA/SBRS Newsletter
Mar/Apr 1997 Six Position Transverter IF Switch W3KM
May 1997 HP Power Sensor Check WA3AXV
June 1997 Mictowave Comb Generator for Receiver Testing G4JNT
June 1997 Power Conditioner for the Qualcom 10 GHz One Watt PA Modules G4JNT
July 1997 Getting Started on 24 GHz KB3XG
Aug. 1997 Getting Started on 24 GHz Contd. KB3XG/WB3JYO
Sept. 1997 24 GHz Transverter KB3XG/WB3JYO
Nov. 1998 VHF Log for Wiindows W3KM
Nov. 1998 Frequency West Brick Problems - 24 Ghz Continued KB3XG/WB3JYO
Dec. 1997 24 GHz Transverter - In Search of a 24 Ghz Transistor..KB3XG/WB3JYO
Jan. 1998 Modifications of the AM6154-6155 for 432 Mhz W3RJW
Feb. 1998 SMA to WR-42 Waveguide Adapter WA6EXV
Mar. 1998 11.644 GHz Branch Hybrid KB3XG/WB3JYO
May 1998 More PLL Local Oscillator Modifications W3KM
Dec 1998 Tower Mounted Preamps WA1YHO