Yes, calling them 'rough service' gets around the regulatory limitations on Wattage. Strictly speaking, intended for such things as inspection lamps and in industrial environments, but what the heck. 100Watt ones are widely available cheaply. Cheaper in fact on Amazon than on e-bay. EG 10 for £2.91 + £2.99 del, so that's 59p each all in:
http://www.amazon.co.uk/EVEREADY-BAYONET-FITTING-LIGHT-FINISH/dp/B0058T87P8/ref=sr_1_3?ie=UTF8&qid=1393577610&sr=8-3&keywords=rough+service+bulbs
Anyone so inclined could have 200 Watt ones for £2.93+£2.93 P&P - 58p each all in:
http://www.amazon.co.uk/Eveready-Rough-Service-Lamp-Bayonet/dp/B008Q9J93G/ref=sr_1_14?ie=UTF8&qid=1393577610&sr=8-14&keywords=rough+service+bulbs
Like Joe, I've only ever used a 60Watt bulb in a lamp limiter – quite adequate for most domestic radios. EG a commonplace radio such as the Bush DAC90A consumes 35 Watts, (DAC90 is 60 Watts, as is a Bush VHF90A). Once we’ve assured ourselves that the set seems to be working OK and the bulb only glows dimly if at all, we switch it out of circuit anyway.
http://www.amazon.co.uk/EVEREADY-BAYONET-FITTING-LIGHT-FINISH/dp/B0058T87P8/ref=sr_1_3?ie=UTF8&qid=1393577610&sr=8-3&keywords=rough+service+bulbs
Anyone so inclined could have 200 Watt ones for £2.93+£2.93 P&P - 58p each all in:
http://www.amazon.co.uk/Eveready-Rough-Service-Lamp-Bayonet/dp/B008Q9J93G/ref=sr_1_14?ie=UTF8&qid=1393577610&sr=8-14&keywords=rough+service+bulbs
Like Joe, I've only ever used a 60Watt bulb in a lamp limiter – quite adequate for most domestic radios. EG a commonplace radio such as the Bush DAC90A consumes 35 Watts, (DAC90 is 60 Watts, as is a Bush VHF90A). Once we’ve assured ourselves that the set seems to be working OK and the bulb only glows dimly if at all, we switch it out of circuit anyway.
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
