6-Meter SSB Transceiver SB-110A

• alternative name: Heath Company

The Heathkit SB-110A is a vintage vacuum-tube amateur radio transceiver designed specifically for the 6-metre (VHF) ham band (50–54 MHz). Introduced in 1969 as an upgrade to the original SB-110, it features a classic all-tube design (using 17 tubes and one transistor) and is capable of SSB and CW operation with roughly 180 watts PEP input. 

SB -110A SPECIFICATIONS- RECEIVER SECTION: Noise Figure: 3 db or less. Sensitivity: 0.1 uy for 15 db signal -plus -noise to noise ratio. Selectivity: 2.1 kHz @ 6 db down, 5 kHz max. @ 60 db down. Image Rejection: 50 db or better. IF Rejection: 50 db or better.
Antenna Input Impedance: 50 ohm nominal (unbalanced). Audio Output Impedance:
Speaker, 8 ohms. Headphones, 600 ohms or higher. Audio Output Power: 1 watt. AGC Characteristics: Audio output level varies less than 10 db for 50 db change of input signal
level (0.5 uy to 150 uy). TRANSMITTER SECTION: DC Power Input: SSB, 180 watts PEP. CW, 150 watts PEP. RF Power Output: SSB, 100 watts PEP. CW, 90 watts (50 ohm non - reactive load). Output Impedance: 50 ohm nominal with not more than 2:1 SWR. Carrier
Suppression: 55 db down from rated output. Unwanted Sideband Suppression: 55 db down from rated output @ 1000 Hz & higher. Distortion Products: 30 db down from rated PEP output. Harmonic Radiation: 35 db below rated output. Hum & Noise: 40 db or better below rated carrier. Audio Input: .007 v. minimum for rated input. CW Sidetone:
Internally switched to speaker with transmitter in CW mode & key depressed. Approx. 800 Hz tone. Keying Characteristics: VOX operated from keyed tone using grid -block
keying. GENERAL: Frequency Coverage: 49.5 to 54.0 MHz in 500 kHz segments (50.0 to 52.0 MHz with crystals supplied). Frequency Selection: Built -in LMO or crystal control. Frequency Stability: Less than 100 Hz drift per hour after 20 minutes warmup under normal ambient conditions, Less than 100 Hz drift for +10% supply voltage variations. Modes of Operation: SSB, single sideband (suppressed carrier, with selectable upper or
lower sideband). TUNE, continuous wove. CW, keyed continuous wave (800 Hz offset
crystal for cross -mode operation between USB and CW). Dial Accuracy: Electrical, within 400 Hz on all band segments, after calibration at nearest 100 kHz point. Visual, within 200 Hz. Dial Backlash: No more than 50 Hz. Calibration: Every 100 kHz. Intermediate
Frequencies: Receiver First IF & Transmitter Second IF, 8.395 to 8.895 MHz passband. Receiver Second IF & Transmitter First IF, 3.395 MHz center frequency. 'Power Require- ments: High voltage, +700 v. DC @ 250 ma with 1% max. ripple. Low voltage, +250 v. DC @ 100 ma with .05 % max. ripple. Bias voltage, -115 v. DC @ 10 ma with 5 max. ripple. Filament voltage, 12.6 v. AC /DC @ 4.355 amps. 

DC Power Supply HP-13 available for $64.95 USD.
AC Power Supply HP-23A available for $49.95 USD.

Here you find 775 models, 758 with images and 515 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Heathkit (Brand), Heath Co.; Benton Harbor (MI)