LUNDAHL Transformers Homepage

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PART1. Boards for Lundahl Transformers
	For Phono No more difficulties or problems, clean wiring, and all options. More info
	Universal No more experimenting with wire spaghetti. List of many configurations, and ideas of yourself may be possible as well. More info
	For Small Signal Input/Output The simple LL1531 board will do in case where you only need high impedance signal isolation, no nonsense and no troubles. The dual gain board (second picture) uses middle sized transformers. and has optional possibility for tuning, and external gain switch. The multiple gain board (third picture) can be programmed for 6 different gain factors, connect an external gain switch, and tuning. Or,like all boards, use it just in straigh forward in fixed, simple configuration More Info.
	For Large Signal Input Output Interstage More info
	For Power Output Transformers Switched impedance and clean wiring More info
EE41 Power Suply with CMR Rejection	Lundahl chokes CMR connected Finally using the 4-Terminal way to connect a choke. More info Available Febr 2023
PART2. TRANSFORMERS OVERVIEW
Output SE / PP	Output SE / PP
Plate Choke	Power Supply Choke
Interstage	tube grid Choke
Mains Cleaning	Filament Choke
Audio + Microphone	Power Supply
Guitar Input	Covers
Interconnect	Silver Wound