10-03-2022, 08:16 AM
Hi RetroRev,
May be a lot of money for naught. One can do the same thing with "Perfboard". However, since most of the wiring is point to point, one can make a rather clean layout with the parts and wiring. If one looks at Old School "HAM equipment, WWII or other Gov't surplus electronics, EH Scott, McMurdo Silver or other antique "high end" radios, they will note the orderly layout of both wiring and components, with the components laid out in "right angles, either parallel or perpendicular to other components and to the chassis. Very neat, but also may have prevented undesired coupling. The radios for "everyman" were assembled as quickly as possible with as few inches of wire as possible, as during the depression and later, price was an issue. It is interesting to compare the ways that radios were built before and after the depression. Before the depression, RCA Superhet radios sold between $150 and $800! (A 1927 Model T Ford started at about $250). By 1933, an RCA R28 "loss leader" Superhet could be had for $22.99 (Though I bet they lost money on them. One of the differences is in how they were built and wired.
The printed circuit board was built primarily to further automate production of electronics. Same with the Integrated circuits. RCA sold TVs advertising "Solid Copper Circuits" as a matter of reliability, even placing one of their portable TVs on a shaker while playing, but considering the wafer sockets and cold solder joints, as the sets aged, that may be a point of contention.
Remember, when restoring AM and especially FM radios, adherence to the original component placement for couplng caps and some wiring may be critical, particularly in the RF and IF sections. Even placement of filament (heater) and AC wiring is important.
Good luck,
John, MrFixr55
May be a lot of money for naught. One can do the same thing with "Perfboard". However, since most of the wiring is point to point, one can make a rather clean layout with the parts and wiring. If one looks at Old School "HAM equipment, WWII or other Gov't surplus electronics, EH Scott, McMurdo Silver or other antique "high end" radios, they will note the orderly layout of both wiring and components, with the components laid out in "right angles, either parallel or perpendicular to other components and to the chassis. Very neat, but also may have prevented undesired coupling. The radios for "everyman" were assembled as quickly as possible with as few inches of wire as possible, as during the depression and later, price was an issue. It is interesting to compare the ways that radios were built before and after the depression. Before the depression, RCA Superhet radios sold between $150 and $800! (A 1927 Model T Ford started at about $250). By 1933, an RCA R28 "loss leader" Superhet could be had for $22.99 (Though I bet they lost money on them. One of the differences is in how they were built and wired.
The printed circuit board was built primarily to further automate production of electronics. Same with the Integrated circuits. RCA sold TVs advertising "Solid Copper Circuits" as a matter of reliability, even placing one of their portable TVs on a shaker while playing, but considering the wafer sockets and cold solder joints, as the sets aged, that may be a point of contention.
Remember, when restoring AM and especially FM radios, adherence to the original component placement for couplng caps and some wiring may be critical, particularly in the RF and IF sections. Even placement of filament (heater) and AC wiring is important.
Good luck,
John, MrFixr55
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis
Best Regards,
MrFixr55
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