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Replacing special Batteries by Battery Packs

Ernst Erb Otmar Jung 
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Papers » Principles of schematics etc. » Replacing special Batteries by Battery Packs
Dietmar Rudolph
Dietmar Rudolph
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21.Sep.10 20:01
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How to replace a combined dry battery by an arrangement of batteries is described in:

Ghirardi, A.: Receiver Troubleshooting and Repair, Rinehart, 1952


8-8. Battery Arrangements in Dry-Battery-Powered Receivers

Two main types of physical arrangements are used for the storage of batteries in standard-portable receivers: a combination "A-B" pack, and separate B and A batteries. The battery pack is designed for compactness and convenience of handling. However, since the A and B batteries do not become discharged at the same rate, it often becomes wasteful to discard a complete pack because one part of it is discharged. For this reason, it is desirable in many cases to convert receivers from pack operation to separate-battery operation.

Figure 8-13 shows battery-pack and separate battery arrangements and how the conversion is made by adding a battery-connecting harness which has a main plug for the battery receptacle on the receiver on one end and separate battery plugs on the other end for the two B batteries and the A battery. Standard harnesses for various uses are manufactured and can be obtained commercially; some of these are illustrated in Fig. 8-14.

Connections for a number of arrangements are illustrated in Fig. 8-15.

Plugs used at the battery end of the harness are illustrated in Fig. 8-16.

In personal-portable receivers, the B supply is usually a 67½-v miniature-type battery, which requires the cap-type connectors as shown in lower right corner of Fig. 8-16.