Vag

Notice short leads on suppressorsm Keep the tank coils and variable capacitor close together. The filament transformer is shielded from rf by its shown, although these ratings are considered to be conservative.

Notice short leads on suppressorsm Keep the tank coils and variable capacitor close together. The filament transformer is shielded from rf by its ease.

loading section is located below the chassis and shielded from the input circuits.

An ideal bifilar wound isolating choke |L3) is noted in Fig. 1. However, we could not obtain the recommended ferrite rod in the local stores so we substituted a % inch diameter ferrite rod 6 inches long, In fact we made three bifilar wound chokes with 30 turns each and tied them together in parallel to get the proper isolation and current carrying capacity.

The meter is placed in the cathode circuit to keep the high B-r voltage off it. A good indication of how much total current is going through the tubes may be obtained from this meter.

It is suggested that the output power of the 4E27,s in this circuit be limited as

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