FWIW, the 5879 was a low noise tube used in many low level audio
amplifiers, often as a microphone pre-amp. Dates around the mid 1950s or
later.

--
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998

开云体育

Hi Mark,

Oh, I see I mis-typed the id of the preamp tubes, should be 5879's not 5789.? -Mark

More pictures would be helpful. I suspect it is an audio amp used in systems for recording and reproducing aviation over-the-air communications. At one time I had several large reel-to-reel tape recorders made for the FAA by Magnasync-Moviola and I seem to recall the interface panels had inputs labeled “Dictaphone”. Perhaps your unit was used to amplify and distribute the audio to multiple tape recording systems?

Best regards,

Steve
WB0DBS
EM17iq09ao

Looking for any information related to this unit. The photo is of the attached nameplate. I have been unsuccessful so far in finding anything abojut this unit.? Thank You. 73

This is an 18 kW 3 phase 45-512 Hz ac power source.

The full model number is FCS18-3PT-HV3-MODE-OR-PRC-704

Unit said to be working except for some wonkiness on one of the output phases.

California Instruments was bought by another company and they have not responded to any inquiries (email, web form, or returned calls).

Any help finding a manual for this 1200 pound item sitting in my garage would be much appreciated!

Peter

开云体育

Hi all

Looking for Sencore VC63 and NT64 manuals.

Alamogordo Amateur Radio Club 开云体育 Hams In The Tularosa Basin And Around The World And Beyond

AARCs' 38th Annual Hamfest 31 Aug Labor Day Weekend 2024 from 7am to 3pm-ish (depends upon presentations)

Free admissions, donations from local and Ham related vendors for door prize drawings throughout the day

Morning brew and eats by club for donations, for lunch support your local vendors.

Plenty of parking at the Otero County Fairgrounds, RV's welcome but no RV hookups, dump station on site

Hamfest is ARRL approved and small listed nonprofit (needing all the help we can get)

AARC is also looking for items to be donated as door prizes throughout the day

"Give a big thank you to those who donated to our past Hamfests." You keep us afloat

We would like to list your logo on our website to show donor support and advertise your business during the event

Main prizes and Ht drawings are normally purchased by the club, (donations accepted) must be present for all except 1st prize

? ? 1st FT-710 AESS
? ? 2nd FTM-6000R
? ? 3rd Mini 1.3 OLED ZUMspot Kit
? ? 4th DM-30TR
? ?$1.00 Drawing for FT65 HT

Main Prize drawing tickets $8.00 mail in post dated before 24 Aug (eligible for Pre-Registration Prize drawing of $50.00) $10.00 at the door, Swap Tables $15.00 with one chair

Any profits made from our event goes back into paying our bills, insurance, repeater systems maintenance, classes and our other public activities

We are also looking for folks/groups who would like to do short presentations

Testing will be conducted on site around 9am-ish (depends upon the VE and VEC's)

Apologize up front for any doubling up on email requests

Check us out at http://www.qsl.net/k5lrw/ and on FB at Alamogordo Amateur Radio Club NM

Our mails;

KI5RUS Rusty rjaskolo@... ? (2024 AARC Pres and Hamfest Chair)

KB7SQF Rick rick@...

Street mailing address for packages please use;

Russell Jaskolowski
1107 Hendrix Ave
Alamogordo, NM 88310

AARC mail box is;

AARC
Hamfest 2024
12 Main St #383
LaLuz, NM 88337

Rusty's cell 575-491-3631

Thank you all for supporting our small club serving the community

Rick KB7SQF
2024 AARC Director
Hamfest Committee Member
73

Thanks, I found the user manuals for the C and B revision already, but I'm looking for the calibration procedure which is a separate document and not included in the user manual.

I contacted Amprobe (aka Fluke) and they told me they don't have the document i'm looking for :/

Anyway, I was poking around and found how to calibrate most of the mode (DCV, ACV, Amps, Continuity). The resistance mode still elude me though.

Hello,

I'm looking for the Meterman / Amprobe HD160B multimeter calibration procedure.

Also if anyone has the service manual I would also be interested.

Thanks,

All,

Does anyone have a datasheet, Operating, or Service Manual for the Anritsu MS68A spectrum analyzer?
Haven't found anything while checking the many manual sites.
Anritsu, Japan noted that support stopped on 1 April 2000.
Are there any Anritsu Catalog PDFs that show it?

thanks, Ron

Hi All, looking for a service manual for GME tx5000/TX5000r if anyone has one. Also manual or at least schematic? for TOKKI JC-100V 2m linar amplifier.
Appreciate any help
wayne?
VK2WDE

The is no service manual for the 2945 on K04BB's site, There is a 2945A service manual, but the 2945 and 2945A are NOT the same.

G Edmonds

I cannot find any documentation for this thing and I'd love to get it calibrated.
I would not have thought this meter is some rare gem.?

On? KO4BB are the service manuals .
I have a 2945 myself.
Only once I had a problem with the set. An OMxxx IC was defective.

Jos PA0AMX

Why are you asking here?

Try /g/Marconi-Test-Instruments

G Edmonds

Does it pass its self test ? 73 john