microFM
7 transistor pulse counting superhet
receiver kit
We apologize for
temporary delays in dispatching orders as we
were sold out, but we now have got new stocks of
parts and will be dispatching orders shortly.
microfm receiver
- All discrete design
- Excellent sound quality
- Single 1.5v AAA cell - over 100 hrs
- No external antenna
- Powerful AFC control
- Auto switch-on when earphones are inserted
- Simple tuning and volume control
- No alignment necessary - single pre-formed
inductor
- Full after sales service
Introduction
Welcome to Armstrong classic radio and audio kits
and we trust you will enjoy building and operating
your microFM receiver. All our kits are designed
from the ground up to give the true pioneering
enjoyment of kits of the past and as such all our
kits use:
- All discrete components - no ICs
- Full circuit descriptions & details
- Easy to follow instructions for assembly and
testing
- Full after sales service, including
faultfinding and repair service
Brief History
Pulse counting superhet receivers were popular in
the UK during the 1960/70 period and a number of
articles were published in magazines, including
'Practical Wireless' and 'Radio Constructor'. These
were ideally suited for home construction as
alignment was minimal and no test instruments were
necessary. Also as no IF transformers were used and
most of the receiver worked at low frequencies,
construction was straightforward. Added to this they
offered excellent audio quality, unlike the super
regenerative receivers.
A kit was also marketed by Sinclair and this
inspired us to produce an up to date version of this
kind of receiver.
Free after sales service
In the unlikely event you cannot get your receiver
to work, we provide a free after sales service. A
postal fee of $4.95 is charged, which covers postage
back to you by registered air mail.
Please watch the video kindly
given to us by one of our customers showing all
the building stages and useful hints and
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