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General| Brand | Heathkit |
|---|---|
| Model | SB-101 |
| Category | Transceiver |
| Language | English |
Provides guidelines for initial inspection and cleaning of vintage radio equipment.
Outlines procedures for performing resistance and voltage checks before powering up.
Guides the user through the receiver alignment procedure for optimal performance.
Addresses troubleshooting steps when the unit shows no signs of power.
Provides guidance on diagnosing receive issues by checking basic functionality.
Offers steps to troubleshoot a complete lack of reception.
Offers tips for troubleshooting transmitter operation if tuning procedures fail.
Provides a step-by-step guide for initial transmitter tune-up for all modes.
Details adjustments for SSB mode operation, including PTT and VOX.
Covers procedures and considerations for CW mode operation.
Describes how to adjust the S-meter for a zero reading during warm-up.
Outlines the procedure for aligning the receiver for optimal sensitivity and performance.
Details preliminary alignment steps for the heterodyne oscillator on various bands.
Provides instructions for transmitter alignment, including neutralizing the final amplifiers.
Provides instructions and equipment required for measuring Signal to Noise Ratio (SNR).
Explains how to measure receiver gain using signal source and audio output meter.
Details testing the signal plus noise to noise ratio for receiver sensitivity.
Defines AGC threshold and how to determine it for receiver performance.
Offers notes and procedures for repairing and servicing LMO units.
Provides guidance on repairing tube-type LMOs, focusing on the "warble" issue.
Explains how to repair and recalibrate an LMO that has become stuck.
Offers a stability fix for SB-102 transceiver LMOs, addressing frequency jumping.
Lists service bulletins specific to the HW-101 model.
Addresses VFO drift issues and the recommended coil replacement.
Discusses heterodyne oscillator tube failures and frequency shift problems.
Provides corrective steps for low output on the 40-meter band.
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