Spark Plug EFHW Antenna - 100 W Version
This is a BIGGER version of our Spark Plug EFHW antenna transformer. In response to requests from users, we’ve crafted a Spark Plug with a larger toroid, magnet wire and over all size to handle those that want the option of 100 Watts output. This unit shows the same resonant frequency and harmonic responses, its just larger.
Testing shows this will version will definitely run warm. For those with the need for portable QRO, this model is not intended for “key-down” performance. Keep in mind we are looking at temporary park/summit activations. Having said that, it will take you out for a spin and get those must have more power QSO’s in the log. For digital we are recommending 30 W for extended use.
This is a low inventory only unit. We do not maintain a large stock. We will try to keep one or two hanging around, but if you have any question, drop us an email to check on availability and delivery. It might take a bit longer to get your hands on one, but you won’t be sorry for the wait.
Shipping Timing Expectations: Each product is handmade to order and tested to ensure proper functionality. Due to high demand, please allow 2-3 weeks for your product to be shipped. If we are able to process your order sooner we will. Our goal is to ship your order as quickly as possible.
This is a BIGGER version of our Spark Plug EFHW antenna transformer. In response to requests from users, we’ve crafted a Spark Plug with a larger toroid, magnet wire and over all size to handle those that want the option of 100 Watts output. This unit shows the same resonant frequency and harmonic responses, its just larger.
Testing shows this will version will definitely run warm. For those with the need for portable QRO, this model is not intended for “key-down” performance. Keep in mind we are looking at temporary park/summit activations. Having said that, it will take you out for a spin and get those must have more power QSO’s in the log. For digital we are recommending 30 W for extended use.
This is a low inventory only unit. We do not maintain a large stock. We will try to keep one or two hanging around, but if you have any question, drop us an email to check on availability and delivery. It might take a bit longer to get your hands on one, but you won’t be sorry for the wait.
Shipping Timing Expectations: Each product is handmade to order and tested to ensure proper functionality. Due to high demand, please allow 2-3 weeks for your product to be shipped. If we are able to process your order sooner we will. Our goal is to ship your order as quickly as possible.
This is a BIGGER version of our Spark Plug EFHW antenna transformer. In response to requests from users, we’ve crafted a Spark Plug with a larger toroid, magnet wire and over all size to handle those that want the option of 100 Watts output. This unit shows the same resonant frequency and harmonic responses, its just larger.
Testing shows this will version will definitely run warm. For those with the need for portable QRO, this model is not intended for “key-down” performance. Keep in mind we are looking at temporary park/summit activations. Having said that, it will take you out for a spin and get those must have more power QSO’s in the log. For digital we are recommending 30 W for extended use.
This is a low inventory only unit. We do not maintain a large stock. We will try to keep one or two hanging around, but if you have any question, drop us an email to check on availability and delivery. It might take a bit longer to get your hands on one, but you won’t be sorry for the wait.
Shipping Timing Expectations: Each product is handmade to order and tested to ensure proper functionality. Due to high demand, please allow 2-3 weeks for your product to be shipped. If we are able to process your order sooner we will. Our goal is to ship your order as quickly as possible.