Hammarlund HQ-180AC

Make

Hammarlund

Model

HQ-180AC

Year

1963-1972

Description

General Coverage Receiver. C model has clock option.

Freq Range

continuous coverage of the broadcast frequencies from .54 Khz to 30 Mhz. These frequencies are divided into six bands,

Tube Complement

v1 RF amplifier

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6BZ6
v2 1st converter

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6BE6
v3 HF oscillator

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6C4
v4 2nd mixer/crystal oscillator

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6BE6
v5 455 Khz gate

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6BA6
v6 455 Khz IF amplifier

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6BA6
v7 3rd mixer/variable oscillator

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6BE6
v8 60 Khz IF amplifier

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6BA6
v9 60 Khz IF amplifier

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6BA6
v10 60 Khz IF amplifier/AVC/AM detector

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6BV6
v11 SSB product detector

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12AU7
v12 Noise limiter

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6AL5
v13 BFO/signal meter amplifier

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12AU7
v14 1st AF amp/delayed AVC clamp

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6AV6
v15 Audio power output

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6AQ5
v16 Voltage regulator

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0A2
v17 Crystal calibrator

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6BZ6
v18 Crystal oscillator

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6CW4