GrahamH's photos with the keyword: equipment

HamDipper7

HamDipper7

GrahamH
29 May 2014 2 359
The dip meter after repair, reassembly and testing. The coils for each band are stored in a drawer which clips in at the base. A crystal earphone is also there as the dipper can also be used a fairly deaf crystal set to test that a transmitter is transmitting on the tuned frequency. May 2014.
HamDipper5

HamDipper5

GrahamH
28 May 2014 2 522
The dip meter had an intermittent fault so I disassembled it to do repairs. I found that the battery leads were badly corroded inside the insulation. This wasn't visible until I cut the battery lead. This photo was taken with the new battery lead soldered in just before reassembly. May 2014.
HamDipper3

HamDipper3

GrahamH
28 May 2014 3 2 487
I bought this soon after getting my licence in the mid 80s. The dip meter had an intermittent fault so I disassembled it to do repairs. I found that the battery leads were badly corroded inside the insulation. This wasn't visible until I cut the battery lead. This photo was taken with the new battery lead soldered in just before reassembly. May 2014.
FreqCntr insides 201303 007

FreqCntr insides 201303 007

GrahamH
22 Mar 2013 240
The cover off the counter to plan modifications to run from 12v car battery etc.
FreqCntr insides 201303 006

FreqCntr insides 201303 006

GrahamH
22 Mar 2013 227
The cover off the counter to plan modifications to run from 12v car battery etc.
FreqCntr insides 201303 005

FreqCntr insides 201303 005

GrahamH
22 Mar 2013 233
The cover off the counter to plan modifications to run from 12v car battery etc.
FreqCntr insides 201303 001

FreqCntr insides 201303 001

GrahamH
22 Mar 2013 1 252
The cover off the counter to plan modifications to run from 12v car battery etc.
FreqCntr insides 201303 004

FreqCntr insides 201303 004

GrahamH
22 Mar 2013 1 2 361
The cover off the counter to plan modifications to run from 12v car battery etc. It surprised me that the power transformer was centre tapped to earth and each side feeding a single diode ala valve rectifier ccts of old.
FreqCntr insides 201303 002

FreqCntr insides 201303 002

GrahamH
22 Mar 2013 242
The cover off the counter to plan modifications to run from 12v car battery etc. It surprised me that the power transformer was centre tapped to earth and each side feeding a single diode ala valve rectifier ccts of old.
FreqCntr insides 201303 003

FreqCntr insides 201303 003

GrahamH
22 Mar 2013 241
The cover off the counter to plan modifications to run from 12v car battery etc. It surprised me that the power transformer was centre tapped to earth and each side feeding a single diode ala valve rectifier ccts of old.
199404GreshamLinkIstall0001

199404GreshamLinkIstall0001

GrahamH
11 Dec 2010 1 193
Simoco (prev Philips) rack with Exicom link radio in the Gresham Train Radio hut. April 1994.