GM4ALB/M 1968..... SLBN 1976..... 8SY5488 1985..... SEGMA 1990-2002.

SM6EY 1947-1949. 1950-1968 SM5EY
SM7EY

Bruno Ringfjord near Borgholm, Oland Island on Swedish SE coast

1:st QSO. One tube regenerative receiver also used as transmitter on short distance.

First years CW only. Homebuilt TX and RX with plug in coils. Homemade vibroplex.

1951 Phase SSB own design. Double triod balanced modulator with two RC elements
both for HF and AF phase dividers with fair sideband suppression in voice midband.

Kombined relayless electronic key for QSK CW Break In and VOX for SSB Phone.

1962 the EY Transceiver. 6 tubes and 2 crystals filter on 6 Mc/s. 80, 40 and 20 m SSB
An EY Transceiver is operative in Amateur Radio Room of Stockholm Tele Museum

1973 2M FM transceiver double conversion with last IF 300 Kc/s for either direct
on the same frequency or 600 Kc/s repeater shift depending on mixing up or down.

Repeater Transceiver single conversion with 600 Kc/s IF. FM-modulated crystal
oscillator signal trippled and doubled for transmit output and for receiver mixing.

Amtor-1 rebuilt to "AMT-1" with Superline AFSK decoder and T-Net AFSK audio.

Several 5 band 10-80 meter tranceivers mostly 2 crystal filter IF built 25 years ago.

!

bruno.ringfjord@telia.com

Year 2002: CW QSO:s with Russian hams via Aurora Jan 3rd on 20
meters and Jan 5th on 30 meters.
Febr: Pactor QSO:s using HB9JNX Soft with my Superline and T-Net.

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