Premium US brand WL production of 1K 50W resistor is suitable for 300b single ended amplifier cathode resistor in a DIY project or for existing amplifier upgrade. eBay price for this brand 50W resistor is usually at $39.99 each, so this listing for this popular value is of good price. Buy and stock up for your future projects.
Size is 4 inch long(about 10cm=100mm). There are soldering tag for wiring easily.
If you need more than 20 pieces, let me know. Shipping cost will be no more than flat rate box cost if you buy multiples.