1 - Peak reading/ssb adapter - Bird Thruline RF Wattmeter Model 43 PEP SSB Peak Module Board takes onboard rechargeable batteries (use "Sanyo Eneloop" low discharge batteries that maintain 70% Charge up to 5 Years when not in use) seller martin_rf_supply $59.95
6 - Parts tester LCR meter - "transistor tester" on eBay, the graphic LCD one, not the 2-line one. "M328 ESR Meter led Transistor Tester Diode Triode Capacitance MOS PNP/NPN L/C/R" by seller danyehu2009 $22.99 or less
Misc - Additional coax type and gender adapters to complement existing adapters. Also need male-male and female-female
2-4 - Bench Multimeter (HP, Fluke, etc) Volts, ohms, mA, A, dBm, dBm relative, etc - 4.5 digits or more. Phillips PM2525, HP 34401A, HP 3478A, Fluke 45, etc
2-4 - Bench Counter e.g. HP 5314A, 5315A, or 5316A (opt 3 is 1GHz) - maybe start with one unit between each 2 benches
2-4 - Bench Function Gen, up to 20 MHz (HP,Wavetek) e.g. HP 3314A, HP 8111A, HP 8112A, HP 8116A
1 - Voltage, current, resistance calibrator board from eBay (~$68) - a standard for confidence checking classroom instruments. See eBay listing for "DMM Check Calibrator DCV, ACV, DCI, ACI, Resistance, Freq, Reference Standard" by seller zildjianboy7
Larger multisync screen for service monitor
Bench Devices:
5 - Decade capacitance box from eBay - $19.99 1uF to 9999uF Step-1uF Four Decade Programmable Capacitor Board 10% capacitors seller electronics-salon
5 - Decade capacitance box from eBay - $12.99 or best offer. 1nF to 9999nF Step-1nF Four Decade Programmable Capacitor Board. Seller electronics-salon
1 - Decade resistance box from eBay - $44.15 0Ω-1MΩ of resistance at 1% accuracy in increments of 1Ω. The PCB measures 3.4”W by 2.5”L. seller atlanta_robotics
Misc magnet wire for toroid cores - research needed
Storage for parts - Another roll around cabinet with small drawers?
NE602 and other common RF ICs
Op amp assortment
Classroom Bench/Toolbox Tools
1 - Powered desoldering capability, Metcal DS1 with Metcal MX-500P-11 power source (used, also needs shop air), or Hakko FR-300 (new), Edsyn ZD500DX (used) ~$250
1 - Hot air SMD rework capabiity, ~$70-$250 range Edsyn 1036 (used), PS537 (used,needs air), or 971HA (used,needs air), Hakko 850B (used), Hakko 851 (used)
1 - Stereo boom microscope 10x overall magnification for smt soldering- Fixed 10x with no zoom is adequate. Sometimes widefield eyepieces are missing. Used brand name is best, Nikon, Olympus, Meiji, Unitron, Swift etc ~$200
1 - Inexpensive gooseneck "study" lamp for microscope illumination. When used for SMT soldering, a 10x microscope gathers light and may cause eyestrain during extended use if the illumination is too bright.
Corded and/or cordless drill - Direct Tool, 217 Premium Outlets Dr, Monroe, OH 45050 (At I75 and SR 63) (513) 539-7292
Drill bits - Fractional and numbered, Direct Tool for fractional
1 - Dremel tool kit with accessories- Lowes, Menards, Home Depot, Wal-Mart
