The
TP-41 "travel radio" was launched in 1969 and produced in 125,000 units until it was replaced in 1975. It came in two versions - walnut (the most common and best looking variety) as well as a black-anodized aluminum model. MSRP was in the neighborhood of $100-150, and current market prices in Norway tend be in the $150-200 band for a nice specimen. The faceplate and chassis is aluminum. Has a very strong FM tuner, as well as AM, MW and SW bands. It can run a long time on the six D batteries, but was also available with a wall adapter and a 12VDC adapter. Tandberg also produced a bracket to mount the radio under the dashboard of your car - after all, it is a "travel radio"! It has dual tone controls, and connections for a deck and TT. It's successor,
the TP-43, can be connected straight to domestic DC with no need for an adapter.
The TP-41 is one of the best "travel radios" in the business, and beats more modern incarnations of the concept, such as the
Tivoli, hands down, IMHO.
A schematic for the TP-41 is available from the Tandberg database in my signature.
.