There were four superhets and three cheaper T.R.F. receivers.
Previously, I had built the Lindsay superhet, which was a tremendous learning experience.
As part of the marketing effort they issued a circuit for a 2 waveband superhet using 6K8,6K7,6Q7 and a 6V6 valve with the HT derived from a metal rectifier.
All simple direct conversion receiver designs suffer from degraded selectivity performance and are more subject to overload by contrasted to even modest superhet designs.
This was one of the first commercially produced British superhets and was several years ahead of its time.
A few tried to skirt these laws, but the vast majority of superhets were built from scratch or from kits with additional parts.
The typical approach both SDRs and superhets have to solve this problem is to make the receiver more deaf.
Early superhets used frequencies of around 100kHz whilst later sets used around 465kHz. There was one major disadvantage however.
In the superhet or superheterodyne radio, the received signal enters one input of the mixed.
Most of these ‘Two Transistor’ jobs were not superhets at all even though they used similar components.
From the late Fifties through the mid-Sixties their beginner's superhet was called the SimpleX Super, a 3-tube affair designed to cover just the 80M and 40M amateur bands.
This circuit evolved from the desire to have transceiver operation when using my homebrew superhet receivers.
Definition of superhet in US English:
superhet
nounˈso͞opərˌhet
informal
short for superheterodyne
Example sentencesExamples
In the superhet or superheterodyne radio, the received signal enters one input of the mixed.
A few tried to skirt these laws, but the vast majority of superhets were built from scratch or from kits with additional parts.
There were four superhets and three cheaper T.R.F. receivers.
As part of the marketing effort they issued a circuit for a 2 waveband superhet using 6K8,6K7,6Q7 and a 6V6 valve with the HT derived from a metal rectifier.
This circuit evolved from the desire to have transceiver operation when using my homebrew superhet receivers.
This was one of the first commercially produced British superhets and was several years ahead of its time.
From the late Fifties through the mid-Sixties their beginner's superhet was called the SimpleX Super, a 3-tube affair designed to cover just the 80M and 40M amateur bands.
Most of these ‘Two Transistor’ jobs were not superhets at all even though they used similar components.
All simple direct conversion receiver designs suffer from degraded selectivity performance and are more subject to overload by contrasted to even modest superhet designs.
The typical approach both SDRs and superhets have to solve this problem is to make the receiver more deaf.
Early superhets used frequencies of around 100kHz whilst later sets used around 465kHz. There was one major disadvantage however.
Previously, I had built the Lindsay superhet, which was a tremendous learning experience.