{"product_id":"18152","title":"ECF801","description":"\u003cp\u003eTUBE miniature triode-pentode multi-unit tube utilizing a 9-pin Noval (B9A) base. It features a combined high-slope frame-grid triode alongside a sharp-cutoff radio frequency (R.F.) pentode - Heater Voltage (\\(V_{f}\\)): 6.3 VoltsHeater Current (\\(I_{f}\\)): 410 mA to 450 mA (Parallel AC\/DC filament supply)Base Configuration: 9-Pin Noval (Designation 9C12 \/ B9A)Pentode Max Voltage: 250 VoltsTransconductance (\\(g_{m}\\)): ~6.0 mA\/V (6,000 µmhos - The ECF801 vacuum tube crosses directly to the North American RETMA designation 6GJ7. In the Sylvania \/ Philips ECG replacement system, it is categorized and branded exactly as the 6GJ7 \/ ECF801\u003c\/p\u003e","brand":"ECG","offers":[{"title":"Default Title","offer_id":24047124840512,"sku":"","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0219\/7936\/5440\/products\/ACtC-3ejds7bp2dqspblDmAoxkeBycXHMfr5WnvkZCWgjjAiDakbLKyuYT3SpqEfmNgBb9cAH7wXPJkmiFCi6Y5qPGRp7yZD7iEevJslxKo6do94ckgJc9jKRFEUMDFbIdlkF5Mae4Ya0ySAVWJeJ3iP8l4QzA_w920-h395-no_d3b624b7-da58-49ea-984e-611c5f539ad8.png?v=1615336953","url":"https:\/\/greenbrookonline.com\/products\/18152","provider":"Green Brook Online","version":"1.0","type":"link"}