Heathkit Gr 1290 Manual
Heathkit Manuals. Crazy making the words and lyrics of justin furstenfeld pdf writer. Looking for an old, out-of-print Heathkit manual? You've come to the right place.
- How do I obtain a replacement manual for a modern Heathkit product? If you need a replacement manual for a modern Heathkit, please contact customer support, as this may entail custom printing of your replacement manual, deactivation and replacement of the old serial number, reprogramming of your custom MPU or other kit changes, and changes in your accounts at Heathkit.com.
- KITS AMTRON: Archivo dimensione Datos (1) AMTRON - Catalogo 1972-1973.pdf Kit: 9.416 Kb: (2) AMTRON - Catalogo 1974-1975.pdf Kit: 11.775 Kb.
Parts list ICs:. U1: CA3130S (BiMOS Operational Amplifier). U2, U3: LM308 (Precision operational amplifiers).
U4: LM2901 (Quad Single Supply Comparator IC) Transistors:. Q1, Q4, Q9, Q10, Q11, Q12: MPSA20 (NPN 40V 100mA). Q2, Q7, Q8, Q13: MPSA55 (PNP 60V 500mA). Q3, Q5: 2N4117 (N-channel JFET transistors). Q6: MPSA13 (NPN Darlington transistor) Diodes:. D1, D3, D4: 1N4149 or 1N4148 (switching diodes).
D2: 1N5230B (4.7V, 0.5W Zener Diode) Notes All resistors are 1/4 watt, 5% tolerance and all capacitors are in microfarads (uF) unless marked otherwise. Voltages were taken with a 9 Volt supply and a setting with no sound coming from the speaker. The controls were set as follows:. Volume - fully counterclockwise. Pushbutton tune - center of rotation. Discriminate - center of rotation. Audio Tune - center of rotation The original coil that came with the Heathkit project was preassembled at the factory.
It had a diameter of around 15cm (6 inch). A larger (30cm, 12inch) coil can be made using the following data: L1 = 300mm diameter, 90 turns,.4mm wire L2 = 140mm diameter, 90 turns,.4mm wire L3 = 130mm diameter, 550 turns,.1mm wire.
This is an archive based on a page that used to be at It has been reassembled from my copy (saved when the site was live) together with files retrieved from and other resources. Hundreds of other files have been kindly contributed over the years too.
Heathkit Gr 1290 Manual Download
Many of the files here are just schematic diagrams but some include additional information such as specifications, and a few are complete manuals. 'Partial manuals' normally include everything apart from construction details. 595 files available. Click a row in the table below to download the file.
Heathkit Gr 1290 Manual Free
You may download up to 5 different files in a 30 minute period. If you have anything to add please email paul (at) vintage-radio (dot) info. Title Description File Type Size.