Schematics, Service manual or circuit diagram
for Herald Schematic £1.80 ($2.30, €2.0)




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38 Herald models


Model
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Year Book/
Source
File Type/
Volume
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Ext
Preview/Status
Herald 14201959SM439?2Herald 1420 schematic circuit diagram
Herald 14211959SM439?2Herald 1421 schematic circuit diagram
Herald 17101957SM371?13Herald 1710 schematic circuit diagram
Herald 17201957SM371?13Herald 1720 schematic circuit diagram
Herald 17351957SM371?13Herald 1735 schematic circuit diagram
Herald 17361957SM371?13Herald 1736 schematic circuit diagram
Herald 17391959SM443?2Herald 1739 schematic circuit diagram
Herald 17401957SM371?13Herald 1740 schematic circuit diagram
Herald 17401958SM414?3Herald 1740 schematic circuit diagram
Herald 17411957SM371?13Herald 1741 schematic circuit diagram
Herald 17411958SM414?3Herald 1741 schematic circuit diagram
Herald 1741U1958SM414?3Herald 1741U schematic circuit diagram
Herald 17421958SM412?3Herald 1742 schematic circuit diagram
Herald 1742U1958SM412?3Herald 1742U schematic circuit diagram
Herald 17431958SM412?3Herald 1743 schematic circuit diagram
Herald 17711959SM454?2Herald 1771 schematic circuit diagram
Herald 17911959SM443?2Herald 1791 schematic circuit diagram
Herald 17991959SM467?1Herald 1799 schematic circuit diagram
Herald 721K7651957SM380?5Herald 721K765 schematic circuit diagram
Herald 721K7691959SM443?2Herald 721K769 schematic circuit diagram
Herald 721K7711957SM371?13Herald 721K771 schematic circuit diagram
Herald 721K7711958SM414?3Herald 721K771 schematic circuit diagram
Herald 721K7731958SM414?3Herald 721K773 schematic circuit diagram
Herald 721K7741957SM371?13Herald 721K774 schematic circuit diagram
Herald 721K7741958SM414?3Herald 721K774 schematic circuit diagram
Herald 721K774U1958SM414?3Herald 721K774U schematic circuit diagram
Herald 721LP7751957SM371?13Herald 721LP775 schematic circuit diagram
Herald 721LP7751958SM414?3Herald 721LP775 schematic circuit diagram
Herald 721LP7771957SM371?13Herald 721LP777 schematic circuit diagram
Herald 721LP7771958SM414?3Herald 721LP777 schematic circuit diagram
Herald 721LP777U1958SM414?3Herald 721LP777U schematic circuit diagram
Herald 721MT7701957SM371?13Herald 721MT770 schematic circuit diagram
Herald 721MT7701958SM414?3Herald 721MT770 schematic circuit diagram
Herald 721P7761959SM443?2Herald 721P776 schematic circuit diagram
Herald 721T7601957SM380?5Herald 721T760 schematic circuit diagram
Herald 821K9091959SM453?2Herald 821K909 schematic circuit diagram
Herald 821T9051959SM453?2Herald 821T905 schematic circuit diagram
Herald 921K8211959SM453?2Herald 921K821 schematic circuit diagram

These radio, TV, record player and tape or cassette recorder schematics, circuit diagrams and service manuals are mostly high quality, very readable scans and will usually be Emailed within an hour or two, if I need to scan an item, or it's the middle of the night here (it is 05:31 in the UK) it may take a little longer!
If more than one schematic is listed for a model I will send them all, unless too big to attach!
Specialising in British schematics Roberts, Hacker, Bush, Pye etc. also American and German manuals feature strongly, search for what you need. Multi page manuals are Emailed as pdfs. Please Email Thanks for looking, Mike.
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90V/1.4V Battery Eliminator

90V/1.4V battery eliminators available at £29 For other voltage combinations Email me!

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Fill in the "Make" and "Model" boxes, if you are unsure of the model, leave it blank and I will list ALL models for that manufacturer, similarly if you only have the model number leave "Make" blank and I will list similar model names from ALL manufacturers.
More explanation here. Some sources searched :-
J.F. Rider's Perpetual Rider 1920-54
Trader Service sheets Trader 1933-81
Beitman's Radio Diags Beitman 1926-69
Beitman's TV Diagrams Beitman 1947-70
Gernsback Radio Diags. Gernsback 1922-34
Empfanger Schaltungen ES 1928-57
RCA Service Notes RCASN 1923-52
Broadcaster Supplements Broadcaster 1934-42
Radio and TV 36 vol set RTV 1945-86
Radio and TV 5 vol set RTV5 1945-54
Crosley Service Suppls. Crosley 1929-42
My Pre-scanned Files File
The search logic is slightly "fuzzy" in that it's case insensitive and ignores punctuation so, model TR-510 is the same as tr510, and G.E.C is the same as "gec".

(286957 schematics* by 2153 different manufacturers indexed!)
Updated 22nd. Apr 2021

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