The Old CATV Equipment Museum
Test Equipment
Signal Level (Field Strength) Meters
Group 1: Amphenol to Jerrold
Amphenol Model 840 Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Detent |
| Tuning range | VHF channels 2-13 |
| Input terminals | N connector |
| Input impedance | 72 |
| Display type | Analog meter |
| Display unit | Microvolts and Decibels |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Approved Electronic Instrument Corporation
Model A-460 Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Detent |
| Tuning range | VHF channels 2-13 |
| Input terminals | Screw terminals |
| Input impedance | 300 ohms |
| Display type | Analog meter |
| Display unit | Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Approved Electronic Instrument Corporation
Model A-465 Field Strength Meter
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Detent |
| Tuning range | VHF channels 2-13, UHF Channels 14-83 |
| Input terminals | Screw terminals |
| Input impedance | 72 ohms, 300 ohms |
| Display type | Analog meter |
| Display unit | Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Avantek Model SL-300 A
Signal Level Meter
| Type | Signal Level Meter |
| Tuner type | Continuous |
| Tuning range | CATV channels 2-36 |
| Input terminals | BNC connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | dBmV |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Benco Television Associates Ltd.
Model FSB-2 Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | VHF channels 2-13, UHF channels 14-83 |
| Input terminals | Non-threaded male push-in |
| Input impedance | 75 ohms |
| Display type | Analog meter |
| Display unit | Microvolts and dBmV |
|
 | | Photos: Lew Chandler | High resolution | | |
Benco Television Associates, Ltd.
Model FSP-3B Field Signal Meter
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
 | | Photo: Lew Chandler | | | |
 | | Photo: Lew Chandler | | | |
 | | Photo: Lew Chandler | | | |
 | | Photo: Lew Chandler | | | |
Blonder Tongue Laboratories, Inc
FSM-1 Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | VHF channels 2-13 |
| Input terminals | N Connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Microvolts and dB |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Blonder Tongue Laboratories, Inc
Model 4127 FSM-2 Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | VHF channels 2-13, UHF channels 14-83 |
| Input terminals | F connectorized C |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Microvolts and dBmV |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Coral Communications Corporation
Model 499 Field Strength Meter
Donated by Bryan Wade
| Type | Field Strength Meter |
| Tuner type | Constant |
| Tuning range | CATV channels 2-36, UHF channels 14-83 |
| Input terminals | F Connector |
| Input impedance | 75 ohms |
| Display type | Analog meter |
| Display unit | Microvolts and dB |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
EBCO Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | VHF: Detent
| | Tuning range | VHF: Channels 2-13 |
| Input terminals | Binding posts |
| Input impedance | 300 Ohms |
| Display type | Analog meter |
| Display unit | Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Hickok Model 235-A Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Constant |
| Tuning range | VHF channels 2-13, UHF channels 14-83 |
| Input terminals | Non-threaded male push-in |
| Input impedance | 75 ohms |
| Display type | Analog meter |
| Display unit | Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Hickok Model S-48 Field Strength Meter
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Constant |
| Tuning range | VHF channels 2-13, UHF channels 14-83 |
| Input terminals | Non-threaded male push-in |
| Input impedance | 75 ohms |
| Display type | Analog meter |
| Display unit | Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Industrial Television, Inc.
Model IT-105 RB VHF UHF Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | VHF: Detent
UHF: Continuous |
| Tuning range | VHF: Channels 2-13
UHF: Channels 14-83 |
| Input terminals | Binding posts |
| Input impedance | 300 Ohms |
| Display type | Analog meter |
| Display unit | Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Electronics Corporation
Model 704B Calibrated Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | 54-220 MHz.
VHF channels 2-13 and the FM band were highlighted |
| Input terminals | F-Connector |
| Input impedance | 72 ohms |
| Display type | Analog meter |
| Display unit | dBj and microvolts |
|
| Manuals: | Model 704 (1953)
Model 704B (February 1960)
Model 704B (December 1964)
|
The Jerrold Model 704 (including its variants the 704A and the 704B) holds a special place in the history of the cable television industry. It was one of the most widely used meters during the early years of the industry, and numerous units are still in existence today. In view of the popularity of this particular meter, this web site has devoted a separate page to it.
|
|
 | | Photo: Richard Kreeger | | | |
Jerrold Electronics Corporation
Model 704 Calibrated Field Strength Meter
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | 54-220 MHz.
VHF channels 2-13 and the FM band were highlighted |
| Input terminals | C-Connector |
| Input impedance | 72 ohms |
| Display type | Analog meter |
| Display unit | dB and microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Electronics Corporation Model TMT
"Transistorized TV Field Strength Meter"
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | Low VHF: channels 2-6
High VHF: channels 7-13 |
| Input terminals | F-connectorized-C (75-ohms)
Screw terminals (300 ohms) |
| Input impedance | 75 or 300 (switched) |
| Display type | Analog Meter |
| Display unit | Microvolts and dBmV | |
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Electronics Corporation Model TMT
"Transistorized TV Field Strength Meter"
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | Low VHF: channels 2-6
High VHF: channels 7-13 |
| Input terminals | F-connectorized-C (75-ohms)
Screw terminals (300 ohms) |
| Input impedance | 75 or 300 (switched) |
| Display type | Analog Meter |
| Display unit | Microvolts and dBmV | |
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Electronics Corporation Model TMT
"Transistorized TV Field Strength Meter"
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | Low VHF: channels 2-6
High VHF: channels 7-13 |
| Input terminals | F-connectorized-C (75-ohms)
Screw terminals (300 ohms) |
| Input impedance | 75 or 300 (switched) |
| Display type | Analog Meter |
| Display unit | Microvolts and dBmV | |
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Electronics Corporation Model TMT
"Transistorized TV Field Strength Meter"
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | Continuous |
| Tuning range | Low VHF: channels 2-6
High VHF: channels 7-13 |
| Input terminals | F-connectorized-C (75-ohms)
Screw terminals (300 ohms) |
| Input impedance | 75 or 300 (switched) |
| Display type | Analog Meter |
| Display unit | Microvolts and dBmV | |
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Electronics Corp. Model 727 Field Strength Meter
Donated by Graham Stubbs
| Type | Field Strength Meter |
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | T channels, Cable channels 2-22, FM
The UH-727 adapter extends the frequency range to include the UHF Band |
| Input terminals | F Connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | dBmV |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Texscan Model 727 Field Strength Meter
| Type | Field Strength Meter |
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | T channels, Cable channels 2-22, FM
The UH-727 adapter extends the frequency range to include the UHF Band |
| Input terminals | F Connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | dBmV |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Model 747 Signal Level Meter
| Type | Signal Level Meter |
| Tuner type | VHF and VHF: Continuous
UHF: Continuous |
| Tuning range | CATV channels 2-36 FM UHF channels 14 to 83 |
| Input terminals | F Connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Microvolt and Decibel |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Model A.I.M 718 Field Strength Meter
( Made by PECA Engineering: www.pecapeca.com )
| Type | Field Strength Meter |
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | VHF channels 2-13 FM UHF channels 14-83 |
| Input terminals | 300 ohm, 300 ohm to 75 ohm adapter |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Decibels and Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Model 719A Signal Level Meter
| Type | Signal Level Meter
|
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | VHF channels 2-13 FM UHF channels 14-83 |
| Input terminals | Separate UHF VHF F connectors |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Decibels and Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold TACO (Technical Appliance Corp.)
Model 719B Signal Level Meter
| Type | Signal Level Meter
|
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | VHF channels 2-13 FM UHF channels 14-83 |
| Input terminals | Separate UHF VHF F connectors |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Decibels and Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Model 720 Field Strength Meter
(Made by Sadelco Corp.)
Donated by Kaz Majewski
| Type | Field Strength Meter
|
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | VHF channels 2-13 FM UHF channels 14-83 |
| Input terminals | F connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Decibels and Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
Jerrold Model 720B Field Strength Meter
(Made by Sadelco Corp.)
Donated by Kaz Majewski
| Type | Field Strength Meter
|
| Tuner type | VHF: Continuous
UHF: Continuous |
| Tuning range | VHF channels 2-13 FM UHF channels 14-83 |
| Input terminals | F connector |
| Input impedance | 75 Ohms |
| Display type | Analog meter |
| Display unit | Decibels and Microvolts |
|
 | | Photo: Lew Chandler | High resolution | | |
 | | Photo: Lew Chandler | | | |
|
